87216140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{396437}}^1$

素因数の和:396457

約数の個数: 24

約数和(自身を含む): 199804752

約数和(自身を除く): 112588612

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 396437, 792874, 1585748, 1982185, 3964370, 4360807, 7928740, 8721614, 17443228, 21804035, 43608070, 87216140]

約数ペア:

[(1, 87216140), (2, 43608070), (4, 21804035), (5, 17443228), (10, 8721614), (11, 7928740), (20, 4360807), (22, 3964370), (44, 1982185), (55, 1585748), (110, 792874), (220, 396437)]