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

//--------------------------------------------
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define RFOR(i,a,b) for(int i=(b)-1;i>=(a);i--)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) RFOR(i,0,n)
#define LL long long
#define INF INT_MAX/3

//--------------------------------------------
const double EPS = 1e-14;
const double PI  = acos(-1.0);

//--------------------------------------------

int main(){
  int a;
  scanf("%d",&a);

  vector <int> v;
  FOR (i, 1, ceil(sqrt(a) + 1)) {
    if (a % i == 0) {
      v.push_back(i);
      v.push_back(a / i);
    }
  }

  sort(v.begin(), v.end());
  v.erase(unique(v.begin(), v.end()), v.end());

  printf("%d\n",v.size());
}