20677820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27943}}^1$

素因数の和:27989

約数の個数: 24

約数和(自身を含む): 44598624

約数和(自身を除く): 23920804

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27943, 55886, 111772, 139715, 279430, 558860, 1033891, 2067782, 4135564, 5169455, 10338910, 20677820]

約数ペア:

[(1, 20677820), (2, 10338910), (4, 5169455), (5, 4135564), (10, 2067782), (20, 1033891), (37, 558860), (74, 279430), (148, 139715), (185, 111772), (370, 55886), (740, 27943)]