20196760

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{757}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 49118400

約数和(自身を除く): 28921640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 40, 46, 58, 92, 115, 116, 145, 184, 230, 232, 290, 460, 580, 667, 757, 920, 1160, 1334, 1514, 2668, 3028, 3335, 3785, 5336, 6056, 6670, 7570, 13340, 15140, 17411, 21953, 26680, 30280, 34822, 43906, 69644, 87055, 87812, 109765, 139288, 174110, 175624, 219530, 348220, 439060, 504919, 696440, 878120, 1009838, 2019676, 2524595, 4039352, 5049190, 10098380, 20196760]

約数ペア:

[(1, 20196760), (2, 10098380), (4, 5049190), (5, 4039352), (8, 2524595), (10, 2019676), (20, 1009838), (23, 878120), (29, 696440), (40, 504919), (46, 439060), (58, 348220), (92, 219530), (115, 175624), (116, 174110), (145, 139288), (184, 109765), (230, 87812), (232, 87055), (290, 69644), (460, 43906), (580, 34822), (667, 30280), (757, 26680), (920, 21953), (1160, 17411), (1334, 15140), (1514, 13340), (2668, 7570), (3028, 6670), (3335, 6056), (3785, 5336)]