66560320

素因数分解:

$2^6\times 5^1\times {\mathrm{208001}}^1$

素因数の和:208018

約数の個数: 28

約数和(自身を含む): 158497524

約数和(自身を除く): 91937204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 208001, 416002, 832004, 1040005, 1664008, 2080010, 3328016, 4160020, 6656032, 8320040, 13312064, 16640080, 33280160, 66560320]

約数ペア:

[(1, 66560320), (2, 33280160), (4, 16640080), (5, 13312064), (8, 8320040), (10, 6656032), (16, 4160020), (20, 3328016), (32, 2080010), (40, 1664008), (64, 1040005), (80, 832004), (160, 416002), (320, 208001)]