import java.util.HashSet;
import java.util.Scanner;

public class N537
{
	public static void main(String[] args)
	{
		Scanner sc=new Scanner(System.in);
		long N=sc.nextLong();
		HashSet<String> hs=new HashSet<String>();
		for(int i=1;i<=((N%2==0)?N/2:(N-1)/2);i++)
		{
			if(N%i==0)
			{
				String sf=String.valueOf(i);
				String ss=String.valueOf(N/i);
				hs.add(sf+ss);
			}
		}
		System.out.println(hs.size());
	}

}