import java.util.Arrays;
import java.util.LinkedList;
import java.util.Scanner;

public class Main {
	
	public static long MOD = 1000000007;
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		final long N = sc.nextLong();
		
		long answer = 0;
		for(long i = 1; i * i <= N; i++){
			if(N % i != 0){ continue; }
			
			if(i * i == N){
				answer += 1;
			}else{
				answer += 2;
			}
		}
		
		System.out.println(answer);
	}
}