20004820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90931}}^1$

素因数の和:90951

約数の個数: 24

約数和(自身を含む): 45829728

約数和(自身を除く): 25824908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90931, 181862, 363724, 454655, 909310, 1000241, 1818620, 2000482, 4000964, 5001205, 10002410, 20004820]

約数ペア:

[(1, 20004820), (2, 10002410), (4, 5001205), (5, 4000964), (10, 2000482), (11, 1818620), (20, 1000241), (22, 909310), (44, 454655), (55, 363724), (110, 181862), (220, 90931)]