using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace yukicoder_537 {
    class Program {
        static void Main(string[] args) {
            long n = long.Parse(Console.ReadLine());
            long count = 0;
            for(int i = 1; i <= Math.Sqrt(n); i++) {
                if (n % i == 0) {
                    count++;
                }
            }
            if (n % Math.Sqrt(n) == 0) {
                Console.WriteLine(count * 2 - 1);
            } else {
                Console.WriteLine(count * 2);
            }
            Console.ReadLine();
        }
    }
}