18868613855

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1481}}^1\times {\mathrm{28001}}^1$

素因数の和:29507

約数の個数: 32

約数和(自身を含む): 27887303808

約数和(自身を除く): 9018689953

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 1481, 7405, 10367, 19253, 28001, 51835, 96265, 134771, 140005, 196007, 364013, 673855, 980035, 1820065, 2548091, 12740455, 41469481, 207347405, 290286367, 539103253, 1451431835, 2695516265, 3773722771, 18868613855]

約数ペア:

[(1, 18868613855), (5, 3773722771), (7, 2695516265), (13, 1451431835), (35, 539103253), (65, 290286367), (91, 207347405), (455, 41469481), (1481, 12740455), (7405, 2548091), (10367, 1820065), (19253, 980035), (28001, 673855), (51835, 364013), (96265, 196007), (134771, 140005)]