18430220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{17387}}^1$

素因数の和:17449

約数の個数: 24

約数和(自身を含む): 39435984

約数和(自身を除く): 21005764

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 17387, 34774, 69548, 86935, 173870, 347740, 921511, 1843022, 3686044, 4607555, 9215110, 18430220]

約数ペア:

[(1, 18430220), (2, 9215110), (4, 4607555), (5, 3686044), (10, 1843022), (20, 921511), (53, 347740), (106, 173870), (212, 86935), (265, 69548), (530, 34774), (1060, 17387)]