20007790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181889}}^1$

素因数の和:181907

約数の個数: 16

約数和(自身を含む): 39288240

約数和(自身を除く): 19280450

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181889, 363778, 909445, 1818890, 2000779, 4001558, 10003895, 20007790]

約数ペア:

[(1, 20007790), (2, 10003895), (5, 4001558), (10, 2000779), (11, 1818890), (22, 909445), (55, 363778), (110, 181889)]