19851853825

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{1087}}^1\times {\mathrm{10289}}^1$

素因数の和:11457

約数の個数: 24

約数和(自身を含む): 24988400640

約数和(自身を除く): 5136546815

約数列:

[1, 5, 25, 71, 355, 1087, 1775, 5435, 10289, 27175, 51445, 77177, 257225, 385885, 730519, 1929425, 3652595, 11184143, 18262975, 55920715, 279603575, 794074153, 3970370765, 19851853825]

約数ペア:

[(1, 19851853825), (5, 3970370765), (25, 794074153), (71, 279603575), (355, 55920715), (1087, 18262975), (1775, 11184143), (5435, 3652595), (10289, 1929425), (27175, 730519), (51445, 385885), (77177, 257225)]