题解 | #质数因子#

import java.util.Scanner

fun main(args: Array<String>) {
    val read = Scanner(System.`in`)
    var ans = read.nextLong()
        val sqr = Math.sqrt(ans.toDouble()).toLong()
    var i = 2
    while (i<=sqr) {
        if((ans % i) == 0L) {
            print("$i ")
            ans /= i
        } else {
            i ++
        }

    }
    println(if (ans==1L) "" else "$ans ")
}