12271820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{461}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 28407456

約数和(自身を除く): 16135636

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 461, 484, 605, 922, 1210, 1331, 1844, 2305, 2420, 2662, 4610, 5071, 5324, 6655, 9220, 10142, 13310, 20284, 25355, 26620, 50710, 55781, 101420, 111562, 223124, 278905, 557810, 613591, 1115620, 1227182, 2454364, 3067955, 6135910, 12271820]

約数ペア:

[(1, 12271820), (2, 6135910), (4, 3067955), (5, 2454364), (10, 1227182), (11, 1115620), (20, 613591), (22, 557810), (44, 278905), (55, 223124), (110, 111562), (121, 101420), (220, 55781), (242, 50710), (461, 26620), (484, 25355), (605, 20284), (922, 13310), (1210, 10142), (1331, 9220), (1844, 6655), (2305, 5324), (2420, 5071), (2662, 4610)]