#include <bits/stdc++.h>
using namespace std;

int main()
{
    long long N;
    cin >> N;
    int count = 0;
    for (long long i = 1; i * i <= N; i++)
    {
        if (N % i == 0)
        {
            if (N / i != i)
            {
                count += 2;
            }
            else
            {
                count += 1;
            }
        }
    }
    cout << count;
}