package yukicoder;

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long n = sc.nextLong();
		long[] x1 = new long [1000000];
		long[] x2 = new long [1000000];
		int cnt = 0;
		for(long i = 1 ; ; i++){
			if((n%i)==0){
				long ans = n / i ;
				if(ans >= i){
					x1[cnt] = ans;
					x2[cnt] = i;
					cnt++;
				}else{
					break ;
				}
			}
		}
		int x = 0;
		for(int i = 0 ; i < cnt ; i++){
			if(x1[i] == x2[i]){
				x++;
			}else{
				x+=2;
			}
		}
	    System.out.println(x);
	}

}