18137540

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1847}}^1$

素因数の和:2347

約数の個数: 24

約数和(自身を含む): 38187072

約数和(自身を除く): 20049532

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1847, 1964, 2455, 3694, 4910, 7388, 9235, 9820, 18470, 36940, 906877, 1813754, 3627508, 4534385, 9068770, 18137540]

約数ペア:

[(1, 18137540), (2, 9068770), (4, 4534385), (5, 3627508), (10, 1813754), (20, 906877), (491, 36940), (982, 18470), (1847, 9820), (1964, 9235), (2455, 7388), (3694, 4910)]