20158539740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{476111}}^1$

素因数の和:476222

約数の個数: 48

約数和(自身を含む): 44392682880

約数和(自身を除く): 24234143140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 290, 292, 365, 580, 730, 1460, 2117, 4234, 8468, 10585, 21170, 42340, 476111, 952222, 1904444, 2380555, 4761110, 9522220, 13807219, 27614438, 34756103, 55228876, 69036095, 69512206, 138072190, 139024412, 173780515, 276144380, 347561030, 695122060, 1007926987, 2015853974, 4031707948, 5039634935, 10079269870, 20158539740]

約数ペア:

[(1, 20158539740), (2, 10079269870), (4, 5039634935), (5, 4031707948), (10, 2015853974), (20, 1007926987), (29, 695122060), (58, 347561030), (73, 276144380), (116, 173780515), (145, 139024412), (146, 138072190), (290, 69512206), (292, 69036095), (365, 55228876), (580, 34756103), (730, 27614438), (1460, 13807219), (2117, 9522220), (4234, 4761110), (8468, 2380555), (10585, 1904444), (21170, 952222), (42340, 476111)]