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

int main()
{
int i;
long long N;
int iCnt;

	cin >> N;

	iCnt = 2;
	for( i = 2; i * i < N; i++ )
	{
		if( N % i == 0 ) iCnt += 2;

	}

	if( i * i == N ) iCnt++;

	cout << iCnt << endl;

	return 0;
}