package test;

import java.util.Scanner;

public class Main {
    public static void main(String[] args){
       Scanner in = new Scanner(System.in);
       long n = in.nextLong();
       int ans = 0;
       for(int i = 1; i <= (int)Math.sqrt(n); i++){
           if(n % i == 0){
               ans += (n / i == i) ? 1 : 2;
           }
       }
       System.out.println(ans);
    }
}