81027908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{8609}}^1$

素因数の和:8807

約数の個数: 24

約数和(自身を含む): 153567960

約数和(自身を除く): 72540052

約数列:

[1, 2, 4, 13, 26, 52, 181, 362, 724, 2353, 4706, 8609, 9412, 17218, 34436, 111917, 223834, 447668, 1558229, 3116458, 6232916, 20256977, 40513954, 81027908]

約数ペア:

[(1, 81027908), (2, 40513954), (4, 20256977), (13, 6232916), (26, 3116458), (52, 1558229), (181, 447668), (362, 223834), (724, 111917), (2353, 34436), (4706, 17218), (8609, 9412)]