连续因子（20分）

• 题目
  
• 题解

import java.util.Scanner;

public class F006 {
    public static void main(String[] args) {
        Scanner input=new Scanner(System.in);
        int num=input.nextInt();

        for (int i=2;i<=Math.sqrt(num);i++) {
            int product=1;
            int count=0;
            int j=i;
            while (product <= num) {
                count++;
                product=product*j*count;
                j++;
                if (product==num){
                    System.out.println(count);
                    for (int p=0;p<count;p++)
                        if (p!=count-1)
                            System.out.print((i+p)+"*");
                        else
                            System.out.print(i+p);
                    return;
                }
                product=product/count;
            }
        }
    }
}