205556080

素因数分解:

$2^4\times 5^1\times {\mathrm{2569451}}^1$

素因数の和:2569464

約数の個数: 20

約数和(自身を含む): 477918072

約数和(自身を除く): 272361992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2569451, 5138902, 10277804, 12847255, 20555608, 25694510, 41111216, 51389020, 102778040, 205556080]

約数ペア:

[(1, 205556080), (2, 102778040), (4, 51389020), (5, 41111216), (8, 25694510), (10, 20555608), (16, 12847255), (20, 10277804), (40, 5138902), (80, 2569451)]