#include <bits/stdc++.h>

using namespace std;

#define int long long
#define f first
#define s second

main()
{
    ios::sync_with_stdio(false);
    int b, ans = 0;
    cin >> b;
    int sq = sqrt(b);
    for (int i = 1; i <= sq; i++){
        if (b % i == 0)
            ans += 2;
    }
    if (sq * sq == b)
        ans--;
    cout << ans;
}