$h = f \times \frac{1}{g}$（？
by 1saunoya @ 2021-02-25 12:59:33
可以的吧，积性函数的逆也是积性函数
by Aleph1022 @ 2021-02-25 12:59:45
捕捉楼上三个红名蓝勾
by mcyqwq @ 2021-02-25 13:05:54
应该很容易吧，积性函数的逆也是积性函数啊
by 胖头鱼学员 @ 2021-02-25 13:07:44
为啥积性函数的逆也是积性函数呀？（数论太差了qaq）
by little_brush @ 2021-02-25 13:07:51
捕捉楼上四个红名蓝勾
by zzr8178541919 @ 2021-02-25 13:08:14
@[little_brush](/user/114502) [link](https://www.cnblogs.com/loceaner/p/12785419.html)翻到最下面参考一下吧
by mcyqwq @ 2021-02-25 13:11:01
就我一个红名绿钩
by Eason_AC @ 2021-02-25 13:12:53
@[Rosmarin](/user/121908) 感谢
by little_brush @ 2021-02-25 13:14:05
就我一个红名绿钩/kk
~~u1s1数论中逆定理一般都是对的~~
by 血色黄昏 @ 2021-02-25 13:18:42