18306440

素因数分解:

$2^3\times 5^1\times {\mathrm{457661}}^1$

素因数の和:457672

約数の個数: 16

約数和(自身を含む): 41189580

約数和(自身を除く): 22883140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457661, 915322, 1830644, 2288305, 3661288, 4576610, 9153220, 18306440]

約数ペア:

[(1, 18306440), (2, 9153220), (4, 4576610), (5, 3661288), (8, 2288305), (10, 1830644), (20, 915322), (40, 457661)]