20157306040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{113167}}^1$

素因数の和:113312

約数の個数: 64

約数和(自身を含む): 46729330560

約数和(自身を除く): 26572024520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 73, 122, 146, 244, 292, 305, 365, 488, 584, 610, 730, 1220, 1460, 2440, 2920, 4453, 8906, 17812, 22265, 35624, 44530, 89060, 113167, 178120, 226334, 452668, 565835, 905336, 1131670, 2263340, 4526680, 6903187, 8261191, 13806374, 16522382, 27612748, 33044764, 34515935, 41305955, 55225496, 66089528, 69031870, 82611910, 138063740, 165223820, 276127480, 330447640, 503932651, 1007865302, 2015730604, 2519663255, 4031461208, 5039326510, 10078653020, 20157306040]

約数ペア:

[(1, 20157306040), (2, 10078653020), (4, 5039326510), (5, 4031461208), (8, 2519663255), (10, 2015730604), (20, 1007865302), (40, 503932651), (61, 330447640), (73, 276127480), (122, 165223820), (146, 138063740), (244, 82611910), (292, 69031870), (305, 66089528), (365, 55225496), (488, 41305955), (584, 34515935), (610, 33044764), (730, 27612748), (1220, 16522382), (1460, 13806374), (2440, 8261191), (2920, 6903187), (4453, 4526680), (8906, 2263340), (17812, 1131670), (22265, 905336), (35624, 565835), (44530, 452668), (89060, 226334), (113167, 178120)]