package main

import (
	"fmt"
	"math"
)

func main() {
	var n int
	_, _ = fmt.Scan(&n)

	cnt := 0
	for i := 1; i <= int(math.Sqrt(float64(n))); i++ {
		if n%i == 0 {
			if i == n/i {
				cnt++
			} else {
				cnt += 2
			}
		}
	}

	fmt.Println(cnt)
}