20148704785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{431}}^1\times {\mathrm{2141}}^1$

素因数の和:2985

約数の個数: 32

約数和(自身を含む): 26516657664

約数和(自身を除く): 6367952879

約数列:

[1, 5, 11, 55, 397, 431, 1985, 2141, 2155, 4367, 4741, 10705, 21835, 23551, 23705, 117755, 171107, 849977, 855535, 922771, 1882177, 4249885, 4613855, 9349747, 9410885, 10150481, 46748735, 50752405, 366340087, 1831700435, 4029740957, 20148704785]

約数ペア:

[(1, 20148704785), (5, 4029740957), (11, 1831700435), (55, 366340087), (397, 50752405), (431, 46748735), (1985, 10150481), (2141, 9410885), (2155, 9349747), (4367, 4613855), (4741, 4249885), (10705, 1882177), (21835, 922771), (23551, 855535), (23705, 849977), (117755, 171107)]