最大乘积问题： 一个正整数一般可以分为几个互不相同的自然数的和，如3=1+2，4=1+3，5＝1+4=2+3，6=1+5＝2+4，…。

现在你的任务是将指定的正整数n分解成若干个互不相同的自然数的和，且使这些自然数的乘积最大。

-The biggest problem of the product: a positive integer in general can be divided into several separate and natural numbers, such as 3 = 1+2,4 = 1+3,5 = 1+4 = 2+3,6 = 1+5 = 2+4, .... Your task now is to specify the positive integer n into a number of natural numbers different from each other and, and make them the product of the largest natural number.