18210760

素因数分解:

$2^3\times 5^1\times {\mathrm{455269}}^1$

素因数の和:455280

約数の個数: 16

約数和(自身を含む): 40974300

約数和(自身を除く): 22763540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 455269, 910538, 1821076, 2276345, 3642152, 4552690, 9105380, 18210760]

約数ペア:

[(1, 18210760), (2, 9105380), (4, 4552690), (5, 3642152), (8, 2276345), (10, 1821076), (20, 910538), (40, 455269)]