81255604

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{495461}}^1$

素因数の和:495506

約数の個数: 12

約数和(自身を含む): 145665828

約数和(自身を除く): 64410224

約数列:

[1, 2, 4, 41, 82, 164, 495461, 990922, 1981844, 20313901, 40627802, 81255604]

約数ペア:

[(1, 81255604), (2, 40627802), (4, 20313901), (41, 1981844), (82, 990922), (164, 495461)]