#include <iostream>
using namespace std;
typedef unsigned long long UL;
int main(int argc, char* argv[])
{
	UL N;
	cin>>N;
	UL aw=0;
	for (UL i=2;i<N-1;i++){
		if (N%i==0){
			aw+=2;
		}
	}
	aw/=2;
	aw+=2;
	cout<<aw<<endl;
	return 0;
}