18895580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85889}}^1$

素因数の和:85909

約数の個数: 24

約数和(自身を含む): 43288560

約数和(自身を除く): 24392980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85889, 171778, 343556, 429445, 858890, 944779, 1717780, 1889558, 3779116, 4723895, 9447790, 18895580]

約数ペア:

[(1, 18895580), (2, 9447790), (4, 4723895), (5, 3779116), (10, 1889558), (11, 1717780), (20, 944779), (22, 858890), (44, 429445), (55, 343556), (110, 171778), (220, 85889)]