#include <iostream>
using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);
    int count = 0;
    long long n;
    cin >> n;

    for (long long i = 1; i * i <= n; ++i) {
        if (n % i == 0) {
            count++;
            if (i != n / i) {
                count++;
            }
        }
    }

    cout << count;

    return 0;
}