18396440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15859}}^1$

素因数の和:15899

約数の個数: 32

約数和(自身を含む): 42822000

約数和(自身を除く): 24425560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 15859, 31718, 63436, 79295, 126872, 158590, 317180, 459911, 634360, 919822, 1839644, 2299555, 3679288, 4599110, 9198220, 18396440]

約数ペア:

[(1, 18396440), (2, 9198220), (4, 4599110), (5, 3679288), (8, 2299555), (10, 1839644), (20, 919822), (29, 634360), (40, 459911), (58, 317180), (116, 158590), (145, 126872), (232, 79295), (290, 63436), (580, 31718), (1160, 15859)]