#include <bits/stdc++.h>
using namespace std;
int main() {
  unsigned long long int b, cnt = 0, c;
  cin >> b;
  c = sqrt(c);
  for (unsigned long long int i = 1; i <= sqrt(b); i++) {
    if (b % i == 0) {
      if (i * i == b)
        cnt++;
      else
        cnt += 2;
    }
  }
  cout << cnt;
}
