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Re:就是求 n^2 的不大于 n 的因子个数

Posted by bono at 2006-08-03 23:19:17 on Problem 2917
In Reply To:就是求 n^2 的不大于 n 的因子个数 Posted by:butterfly at 2006-08-03 17:54:41
我还以为是求n(n+1)不大于n的因子个数....

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