18414460

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8447}}^1$

素因数の和:8565

約数の個数: 24

約数和(自身を含む): 39029760

約数和(自身を除く): 20615300

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8447, 16894, 33788, 42235, 84470, 168940, 920723, 1841446, 3682892, 4603615, 9207230, 18414460]

約数ペア:

[(1, 18414460), (2, 9207230), (4, 4603615), (5, 3682892), (10, 1841446), (20, 920723), (109, 168940), (218, 84470), (436, 42235), (545, 33788), (1090, 16894), (2180, 8447)]