256856405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{106801}}^1$

素因数の和:106856

約数の個数: 16

約数和(自身を含む): 340911984

約数和(自身を除く): 84055579

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 106801, 534005, 1388413, 3951637, 6942065, 19758185, 51371281, 256856405]

約数ペア:

[(1, 256856405), (5, 51371281), (13, 19758185), (37, 6942065), (65, 3951637), (185, 1388413), (481, 534005), (2405, 106801)]