import java.util.Scanner;

public class Main {
	
	public static void main(String[] args){
		Scanner s = new Scanner(System.in);
		String str = s.next();
		s.close();
		long n = Long.parseLong(str);
		long count = 0;
		double sqrt = Math.sqrt((double)n);
		long heihou = (long) Math.floor(Math.sqrt((double)n));
		if(sqrt==(double)heihou){
			count--;
		}
		for(long i= 1;i<=heihou;i++){
			if(n%i==0){
				count++;
				count++;
				
			}
		}
		
			
		System.out.println(count);
		
	}

}