18187640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15679}}^1$

素因数の和:15719

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 24148360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 15679, 31358, 62716, 78395, 125432, 156790, 313580, 454691, 627160, 909382, 1818764, 2273455, 3637528, 4546910, 9093820, 18187640]

約数ペア:

[(1, 18187640), (2, 9093820), (4, 4546910), (5, 3637528), (8, 2273455), (10, 1818764), (20, 909382), (29, 627160), (40, 454691), (58, 313580), (116, 156790), (145, 125432), (232, 78395), (290, 62716), (580, 31358), (1160, 15679)]