求数学问题

学术版

luogu_gza @ 2023-03-05 11:54:20

\sum_{s \subseteq S} [gcd(s)>1] gcd(s)|s|

|S|<=5*10^5

by esquigybcu @ 2023-03-05 12:08:38

一眼莫反

by esquigybcu @ 2023-03-05 12:11:52

by esquigybcu @ 2023-03-05 12:16:59

第一行 \delta_0 应为 \delta_1

by luogu_gza @ 2023-03-05 12:17:18

@esquigybcu 哦吼，谢谢

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