12711820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{57781}}^1$

素因数の和:57801

約数の個数: 24

約数和(自身を含む): 29122128

約数和(自身を除く): 16410308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 57781, 115562, 231124, 288905, 577810, 635591, 1155620, 1271182, 2542364, 3177955, 6355910, 12711820]

約数ペア:

[(1, 12711820), (2, 6355910), (4, 3177955), (5, 2542364), (10, 1271182), (11, 1155620), (20, 635591), (22, 577810), (44, 288905), (55, 231124), (110, 115562), (220, 57781)]