561860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2161}}^1$

素因数の和:2183

約数の個数: 24

約数和(自身を含む): 1271256

約数和(自身を除く): 709396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2161, 4322, 8644, 10805, 21610, 28093, 43220, 56186, 112372, 140465, 280930, 561860]

約数ペア:

[(1, 561860), (2, 280930), (4, 140465), (5, 112372), (10, 56186), (13, 43220), (20, 28093), (26, 21610), (52, 10805), (65, 8644), (130, 4322), (260, 2161)]