18718580

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{8747}}^1$

素因数の和:8863

約数の個数: 24

約数和(自身を含む): 39680928

約数和(自身を除く): 20962348

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 8747, 17494, 34988, 43735, 87470, 174940, 935929, 1871858, 3743716, 4679645, 9359290, 18718580]

約数ペア:

[(1, 18718580), (2, 9359290), (4, 4679645), (5, 3743716), (10, 1871858), (20, 935929), (107, 174940), (214, 87470), (428, 43735), (535, 34988), (1070, 17494), (2140, 8747)]