using System;

    class Program {
        static void Main(string[] args) {

            string read = Console.ReadLine();

            int n = int.Parse(read);

            int rtn = 0;
            for (int i = 1; i * i <= n; i++) {
                if (n % i == 0) {
                    if (i * i == n) {
                        rtn++;
                    } else {
                        rtn += 2;
                    }
                }

            }

            Console.WriteLine(rtn);
        }
    }