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

int main() {
  int N, ans = 0;
  cin >> N;

  for (int i = 1; i <= (int)sqrt(N); i++) {
    if (N % i == 0 && i != (N / i))
      ans += 2;
    else if (N % i == 0 && i == (N / i))
      ans++;
  }

  cout << ans << endl;
}