28065340

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8609}}^1$

素因数の和:8781

約数の個数: 24

約数和(自身を含む): 59305680

約数和(自身を除く): 31240340

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 8609, 17218, 34436, 43045, 86090, 172180, 1403267, 2806534, 5613068, 7016335, 14032670, 28065340]

約数ペア:

[(1, 28065340), (2, 14032670), (4, 7016335), (5, 5613068), (10, 2806534), (20, 1403267), (163, 172180), (326, 86090), (652, 43045), (815, 34436), (1630, 17218), (3260, 8609)]