128214020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{52981}}^1$

素因数の和:53012

約数の個数: 36

約数和(自身を含む): 295957452

約数和(自身を除く): 167743432

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 52981, 105962, 211924, 264905, 529810, 582791, 1059620, 1165582, 2331164, 2913955, 5827910, 6410701, 11655820, 12821402, 25642804, 32053505, 64107010, 128214020]

約数ペア:

[(1, 128214020), (2, 64107010), (4, 32053505), (5, 25642804), (10, 12821402), (11, 11655820), (20, 6410701), (22, 5827910), (44, 2913955), (55, 2331164), (110, 1165582), (121, 1059620), (220, 582791), (242, 529810), (484, 264905), (605, 211924), (1210, 105962), (2420, 52981)]