rt。“质因子幂次不影响欧拉函数的值”纯属无稽之谈。

错误题解：

https://www.luogu.com.cn/article/ay5kl75h

https://www.luogu.com.cn/article/eaj3m98w

https://www.luogu.com.cn/article/o9j8bos1

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