#define _USE_MATH_DEFINES//M_PI
#include<iostream>
#include<algorithm>
#include<string>
#include<vector>
#include<iomanip>
#include<math.h>
#include<map>
#define llong long long
#define int(s) atoi(s.c_str())
#define dou(s) atof(s.c_str())
#define llo(s) atoll(s.c_str())
#define str(n) to_string(n)
#define rep(i,a,b) for(int i=a;i<b;i++)
#define all(a) a.begin(),a.end()
#define fion(n) fixed<<setprecision(n)
#define endl '\n'
#define OR ||
#define AND &&
#define NOT !
//#define scanf scanf_s
#define lin(n) scanf("%lld",&n)
#define iin(n) scanf("%d",&n)
#define din(z) scanf("%lf",&z)
#define sin(s) cin>>s
#define input(s) getline(cin,s)
#define START int main
using namespace std;
START() {
	llong a; lin(a);
	llong n = sqrt(a);
	llong c = 0;
	rep(i, 1, a + 1) {
		if (a%i == 0) {
			c++;
		}
	}
	cout << c << endl;
}