81661072

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{137941}}^1$

素因数の和:137986

約数の個数: 20

約数和(自身を含む): 162495676

約数和(自身を除く): 80834604

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 137941, 275882, 551764, 1103528, 2207056, 5103817, 10207634, 20415268, 40830536, 81661072]

約数ペア:

[(1, 81661072), (2, 40830536), (4, 20415268), (8, 10207634), (16, 5103817), (37, 2207056), (74, 1103528), (148, 551764), (296, 275882), (592, 137941)]