20216918860

素因数分解:

$2^2\times 5^1\times {\mathrm{8161}}^1\times {\mathrm{123863}}^1$

素因数の和:132033

約数の個数: 24

約数和(自身を含む): 42461074656

約数和(自身を除く): 22244155796

約数列:

[1, 2, 4, 5, 10, 20, 8161, 16322, 32644, 40805, 81610, 123863, 163220, 247726, 495452, 619315, 1238630, 2477260, 1010845943, 2021691886, 4043383772, 5054229715, 10108459430, 20216918860]

約数ペア:

[(1, 20216918860), (2, 10108459430), (4, 5054229715), (5, 4043383772), (10, 2021691886), (20, 1010845943), (8161, 2477260), (16322, 1238630), (32644, 619315), (40805, 495452), (81610, 247726), (123863, 163220)]