18320780

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{3307}}^1$

素因数の和:3593

約数の個数: 24

約数和(自身を含む): 38624208

約数和(自身を除く): 20303428

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 3307, 5540, 6614, 13228, 16535, 33070, 66140, 916039, 1832078, 3664156, 4580195, 9160390, 18320780]

約数ペア:

[(1, 18320780), (2, 9160390), (4, 4580195), (5, 3664156), (10, 1832078), (20, 916039), (277, 66140), (554, 33070), (1108, 16535), (1385, 13228), (2770, 6614), (3307, 5540)]