8640920

素因数分解:

$2^3\times 5^1\times {\mathrm{216023}}^1$

素因数の和:216034

約数の個数: 16

約数和(自身を含む): 19442160

約数和(自身を除く): 10801240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 216023, 432046, 864092, 1080115, 1728184, 2160230, 4320460, 8640920]

約数ペア:

[(1, 8640920), (2, 4320460), (4, 2160230), (5, 1728184), (8, 1080115), (10, 864092), (20, 432046), (40, 216023)]