18417362680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10707769}}^1$

素因数の和:10707823

約数の個数: 32

約数和(自身を含む): 42402769200

約数和(自身を除く): 23985406520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10707769, 21415538, 42831076, 53538845, 85662152, 107077690, 214155380, 428310760, 460434067, 920868134, 1841736268, 2302170335, 3683472536, 4604340670, 9208681340, 18417362680]

約数ペア:

[(1, 18417362680), (2, 9208681340), (4, 4604340670), (5, 3683472536), (8, 2302170335), (10, 1841736268), (20, 920868134), (40, 460434067), (43, 428310760), (86, 214155380), (172, 107077690), (215, 85662152), (344, 53538845), (430, 42831076), (860, 21415538), (1720, 10707769)]