20788896740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1087}}^1\times {\mathrm{50329}}^1$

素因数の和:51444

約数の個数: 48

約数和(自身を含む): 45997593600

約数和(自身を除く): 25208696860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1087, 2174, 4348, 5435, 10870, 20653, 21740, 41306, 50329, 82612, 100658, 103265, 201316, 206530, 251645, 413060, 503290, 956251, 1006580, 1912502, 3825004, 4781255, 9562510, 19125020, 54707623, 109415246, 218830492, 273538115, 547076230, 1039444837, 1094152460, 2078889674, 4157779348, 5197224185, 10394448370, 20788896740]

約数ペア:

[(1, 20788896740), (2, 10394448370), (4, 5197224185), (5, 4157779348), (10, 2078889674), (19, 1094152460), (20, 1039444837), (38, 547076230), (76, 273538115), (95, 218830492), (190, 109415246), (380, 54707623), (1087, 19125020), (2174, 9562510), (4348, 4781255), (5435, 3825004), (10870, 1912502), (20653, 1006580), (21740, 956251), (41306, 503290), (50329, 413060), (82612, 251645), (100658, 206530), (103265, 201316)]