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Update docs/math/sieve.md
author
ljfcnyali
<ljfcnyali@gmail.com>
Thu, 29 Aug 2019 23:58:21 +0000
(07:58 +0800)
committer
GitHub
<noreply@github.com>
Thu, 29 Aug 2019 23:58:21 +0000
(07:58 +0800)
Co-Authored-By: zhouyuyang2002 <54274322+zhouyuyang2002@users.noreply.github.com>
docs/math/sieve.md
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b/docs/math/sieve.md
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--- a/
docs/math/sieve.md
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docs/math/sieve.md
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void pre() {
定理:若 $n=\prod_{i=1}^mp_i^{c_i}$ 则 $d_i=\prod_{i=1}^mc_i+1$
-证明:我们知道 $p_i^{c_i}$ 的约数有 $p_i^0,p_i^1,\cdots p_i^{c_i}$ 共有 $c_i+1$ 个,根据乘法原理, $n$ 的约数个数就是 $\prod_{i=1}^mc_i+1$
+证明:我们知道 $p_i^{c_i}$ 的约数有 $p_i^0,p_i^1,\cdots
,
p_i^{c_i}$ 共有 $c_i+1$ 个,根据乘法原理, $n$ 的约数个数就是 $\prod_{i=1}^mc_i+1$
#### 实现