18017540

素因数分解:

$2^2\times 5^1\times {\mathrm{683}}^1\times {\mathrm{1319}}^1$

素因数の和:2011

約数の個数: 24

約数和(自身を含む): 37920960

約数和(自身を除く): 19903420

約数列:

[1, 2, 4, 5, 10, 20, 683, 1319, 1366, 2638, 2732, 3415, 5276, 6595, 6830, 13190, 13660, 26380, 900877, 1801754, 3603508, 4504385, 9008770, 18017540]

約数ペア:

[(1, 18017540), (2, 9008770), (4, 4504385), (5, 3603508), (10, 1801754), (20, 900877), (683, 26380), (1319, 13660), (1366, 13190), (2638, 6830), (2732, 6595), (3415, 5276)]