20649633490

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1831}}^1\times {\mathrm{8609}}^1$

素因数の和:10578

約数の個数: 32

約数和(自身を含む): 37477883520

約数和(自身を除く): 16828250030

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 1831, 3662, 8609, 9155, 17218, 18310, 43045, 86090, 239861, 479722, 1127779, 1199305, 2255558, 2398610, 5638895, 11277790, 15763079, 31526158, 78815395, 157630790, 2064963349, 4129926698, 10324816745, 20649633490]

約数ペア:

[(1, 20649633490), (2, 10324816745), (5, 4129926698), (10, 2064963349), (131, 157630790), (262, 78815395), (655, 31526158), (1310, 15763079), (1831, 11277790), (3662, 5638895), (8609, 2398610), (9155, 2255558), (17218, 1199305), (18310, 1127779), (43045, 479722), (86090, 239861)]