68647540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{264029}}^1$

素因数の和:264051

約数の個数: 24

約数和(自身を含む): 155249640

約数和(自身を除く): 86602100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 264029, 528058, 1056116, 1320145, 2640290, 3432377, 5280580, 6864754, 13729508, 17161885, 34323770, 68647540]

約数ペア:

[(1, 68647540), (2, 34323770), (4, 17161885), (5, 13729508), (10, 6864754), (13, 5280580), (20, 3432377), (26, 2640290), (52, 1320145), (65, 1056116), (130, 528058), (260, 264029)]