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2020-2021:teams:legal_string:jxm2001:other:结论_3 [CVBB ACM Team]

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2020-2021:teams:legal_string:jxm2001:other:结论_3 [2021/07/23 21:20]
jxm2001
2020-2021:teams:legal_string:jxm2001:other:结论_3 [2021/08/09 20:50] (当前版本)
jxm2001
行 32: 行 32:
 ===== 3、因子个数 ===== ===== 3、因子个数 =====
  
-一个数 $n$ 的因子个数不超过 $O\left(n^{\frac 13}\right)$。+一个数 $n$ 的因子个数不超过 $O\left(n^{f(n)}\right)$,$f(n)$ 大致递减且 $n$ 比较大时可认为 $f(n)\le \frac 13$,例如 $n\le 10^{18}$ 时因子数至多在 $10^5$ 左右 
 + 
 +===== 4、加法运算 ===== 
 + 
 +$a+b=a|b+a\And b$
2020-2021/teams/legal_string/jxm2001/other/结论_3.1627046454.txt.gz · 最后更改: 2021/07/23 21:20 由 jxm2001