题库练习 Decryption
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A13848 | Decryption

时间限制1s
内存限制256MB
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题目描述

An agent called Cypher is decrypting a message, that contains a [composite number](https://en.wikipedia.org/wiki/Composite_number) $n$ . All divisors of $n$ , which are greater than $1$ , are placed in a circle. Cypher can choose the initial order of numbers in the circle.

In one move Cypher can choose two adjacent numbers in a circle and insert their [least common multiple](https://en.wikipedia.org/wiki/Least_common_multiple) between them. He can do that move as many times as needed.

A message is decrypted, if every two adjacent numbers are not coprime. Note that for such constraints it's always possible to decrypt the message.

Find the minimal number of moves that Cypher should do to decrypt the message, and show the initial order of numbers in the circle for that.

输入格式

The first line contains an integer $t$ $(1 \le t \le 100)$ — the number of test cases. Next $t$ lines describe each test case.

In a single line of each test case description, there is a single composite number $n$ $(4 \le n \le 10^9)$ — the number from the message.

It's guaranteed that the total number of divisors of $n$ for all test cases does not exceed $2 \cdot 10^5$ .

输出格式

For each test case in the first line output the initial order of divisors, which are greater than $1$ , in the circle. In the second line output, the minimal number of moves needed to decrypt the message.

If there are different possible orders with a correct answer, print any of them.

输入输出样例

输入 #1
3
6
4
30
输出 #1
2 3 6 
1
2 4 
0
2 30 6 3 15 5 10 
0
C++ 编辑器
输入
输出