20662436740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2551}}^1\times {\mathrm{3347}}^1$

素因数の和:5929

約数の個数: 72

約数和(自身を含む): 47727320256

約数和(自身を除く): 27064883516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 2551, 3347, 5102, 6694, 10204, 12755, 13388, 16735, 25510, 28061, 33470, 36817, 51020, 56122, 66940, 73634, 112244, 140305, 147268, 184085, 280610, 308671, 368170, 404987, 561220, 617342, 736340, 809974, 1234684, 1543355, 1619948, 2024935, 3086710, 4049870, 6173420, 8099740, 8538197, 17076394, 34152788, 42690985, 85381970, 93920167, 170763940, 187840334, 375680668, 469600835, 939201670, 1033121837, 1878403340, 2066243674, 4132487348, 5165609185, 10331218370, 20662436740]

約数ペア:

[(1, 20662436740), (2, 10331218370), (4, 5165609185), (5, 4132487348), (10, 2066243674), (11, 1878403340), (20, 1033121837), (22, 939201670), (44, 469600835), (55, 375680668), (110, 187840334), (121, 170763940), (220, 93920167), (242, 85381970), (484, 42690985), (605, 34152788), (1210, 17076394), (2420, 8538197), (2551, 8099740), (3347, 6173420), (5102, 4049870), (6694, 3086710), (10204, 2024935), (12755, 1619948), (13388, 1543355), (16735, 1234684), (25510, 809974), (28061, 736340), (33470, 617342), (36817, 561220), (51020, 404987), (56122, 368170), (66940, 308671), (73634, 280610), (112244, 184085), (140305, 147268)]