18447101980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11675381}}^1$

素因数の和:11675469

約数の個数: 24

約数和(自身を含む): 39229283520

約数和(自身を除く): 20782181540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 11675381, 23350762, 46701524, 58376905, 116753810, 233507620, 922355099, 1844710198, 3689420396, 4611775495, 9223550990, 18447101980]

約数ペア:

[(1, 18447101980), (2, 9223550990), (4, 4611775495), (5, 3689420396), (10, 1844710198), (20, 922355099), (79, 233507620), (158, 116753810), (316, 58376905), (395, 46701524), (790, 23350762), (1580, 11675381)]