#include <iostream>
#include<vector>
#include<algorithm>
#define ll long long
using namespace std;

int main()
{
    ll i, j, b;
    cin >> b;
    ll ans = 0;
    for (i = 1; i * i <= b; i++)
    {
        if (b % i == 0)
        {
            if (b / i == i)
            {
                ans++;
            }
            else
            {
                ans += 2;
            }
        }
    }
        cout << ans ;
}