20180631790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{921911}}^1$

素因数の和:922128

約数の個数: 32

約数和(自身を含む): 39826598400

約数和(自身を除く): 19645966610

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 995, 1990, 2189, 4378, 10945, 21890, 921911, 1843822, 4609555, 9219110, 10141021, 20282042, 50705105, 101410210, 183460289, 366920578, 917301445, 1834602890, 2018063179, 4036126358, 10090315895, 20180631790]

約数ペア:

[(1, 20180631790), (2, 10090315895), (5, 4036126358), (10, 2018063179), (11, 1834602890), (22, 917301445), (55, 366920578), (110, 183460289), (199, 101410210), (398, 50705105), (995, 20282042), (1990, 10141021), (2189, 9219110), (4378, 4609555), (10945, 1843822), (21890, 921911)]