81076820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{368531}}^1$

素因数の和:368551

約数の個数: 24

約数和(自身を含む): 185740128

約数和(自身を除く): 104663308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 368531, 737062, 1474124, 1842655, 3685310, 4053841, 7370620, 8107682, 16215364, 20269205, 40538410, 81076820]

約数ペア:

[(1, 81076820), (2, 40538410), (4, 20269205), (5, 16215364), (10, 8107682), (11, 7370620), (20, 4053841), (22, 3685310), (44, 1842655), (55, 1474124), (110, 737062), (220, 368531)]