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

int main(void) {
    ll N,i;
    int ans = 2;
    cin >> N;
    if (N == 1) {
        cout << N <<endl;
        return 0;
    }
    ll stop = floor(sqrt(N));
    if (N == stop * stop) ans--;
    for (i = 2; i <= stop; i++) if (N % i == 0) ans += 2;
    cout << ans << endl;
    return 0;
}