大于1的正整数 n 都可以分解为 n = x1 * x2 * ... * xm



例如：当n=12时，共有8种不同的分解式：

12 = 12

12 = 6*2

12 = 4*3

12 = 3*4

12 = 3*2*2

12 = 2*6

12 = 2*3*2

12 = 2*2*3



对于给定正整数n，计算n共有多少种不同的分解式。-The positive integer n greater than 1 can be decomposed as n = x1* x2* ...* XM example: when n = 12, a total of eight different decomposition of the formula: 12 = 1212 = 6* 212 = 4* 312 = 3* 412 = 3* 2* 212 = 2* 612 = 2* 3* 212 = 2* 2* 3 calculated for a given positive integer n, n the total number of different types of decomposition.