#define ll long long

#include<iostream>
#include<vector>
#include<math.h>
using namespace std;

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

	for(int i=1;i<=n;i++){
		if(n%i==0)ans++;
	}
	if(sqrt(n)-floor(sqrt(n))==0)ans--;
	cout<<ans<<endl;
	return 0;
}