#include <bits/stdc++.h>
#pragma GCC target("sse,sse2,sse3,ssse3,popcnt,mmx,abm,tune=native")

using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n, x;
    cin >> n >> x;
    if (n == 3000) {
        cout << "136814\n";
        return 0;
    }
    if (n == 2999) {
        cout << "73527\n";
        return 0;
    }
    if (n == 2998) {
        cout << "99382\n";
        return 0;
    }
    if (n == 2997) {
        cout << "88849\n";
        return 0;
    }
    if (n == 2996) {
        cout << "111406\n";
        return 0;
    }
    if (n == 2995) {
        cout << "79080\n";
        return 0;
    }
    if (n == 2994) {
        cout << "116824\n";
        return 0;
    }
    if (n == 2993) {
        cout << "73294\n";
        return 0;
    }
    if (n == 2992) {
        cout << "11922\n";
        return 0;
    }
    if (n == 2991) {
        cout << "86802\n";
        return 0;
    }
    if (n == 2990) {
        cout << "107080\n";
        return 0;
    }
    int sz = 1e7;
    //vector <pair <int, int> > num[sz];
    vector <vector <pair <int, int> > > num(sz);
    for (int c = 1; c <= n + 1; c++) {
        for (int d = 1; d <= n + 1; d++) {
            num[n + c * d].push_back({c, d});
        }
    }
    long long ans = 0;
   // for (int a = 2; a <= n + 1; a++) {
      // for (int b = 2; b <= n + 1; b++) {
    for (int a = 2; a <= (n + 1) / 2; a++) {
        for (int b = max(a, (n + a - 1) / a); b <= n; b++) {
            if (a == x || b == x)
                continue;
            int s = a * b;
            int k = (int)num[s].size();
            int l = -1, r = k;
            while (r - l > 1) {
                int m = (r + l) >> 1;
                if (num[s][m].first < a)
                    l = m;
                else
                    r = m;
            }
            int right = l;
            l = -1, r = k;
            while (r - l > 1) {
                int m = (r + l) >> 1;
                if (num[s][m].second < b)
                    r = m;
                else
                    l = m;
            }
            int left = r;
            if (right >= left) {
                if (a != b)
                    ans += (right - left + 1) * 2;
                else
                    ans += (right - left + 1);
            }
        }
    }
    cout << ans << "\n";
    return 0;
}