28320820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 70398720

約数和(自身を除く): 42077900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 29, 44, 46, 55, 58, 92, 110, 115, 116, 145, 193, 220, 230, 253, 290, 319, 386, 460, 506, 580, 638, 667, 772, 965, 1012, 1265, 1276, 1334, 1595, 1930, 2123, 2530, 2668, 3190, 3335, 3860, 4246, 4439, 5060, 5597, 6380, 6670, 7337, 8492, 8878, 10615, 11194, 13340, 14674, 17756, 21230, 22195, 22388, 27985, 29348, 36685, 42460, 44390, 48829, 55970, 61567, 73370, 88780, 97658, 111940, 123134, 128731, 146740, 195316, 244145, 246268, 257462, 307835, 488290, 514924, 615670, 643655, 976580, 1231340, 1287310, 1416041, 2574620, 2832082, 5664164, 7080205, 14160410, 28320820]

約数ペア:

[(1, 28320820), (2, 14160410), (4, 7080205), (5, 5664164), (10, 2832082), (11, 2574620), (20, 1416041), (22, 1287310), (23, 1231340), (29, 976580), (44, 643655), (46, 615670), (55, 514924), (58, 488290), (92, 307835), (110, 257462), (115, 246268), (116, 244145), (145, 195316), (193, 146740), (220, 128731), (230, 123134), (253, 111940), (290, 97658), (319, 88780), (386, 73370), (460, 61567), (506, 55970), (580, 48829), (638, 44390), (667, 42460), (772, 36685), (965, 29348), (1012, 27985), (1265, 22388), (1276, 22195), (1334, 21230), (1595, 17756), (1930, 14674), (2123, 13340), (2530, 11194), (2668, 10615), (3190, 8878), (3335, 8492), (3860, 7337), (4246, 6670), (4439, 6380), (5060, 5597)]