8005420

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{701}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 16864848

約数和(自身を除く): 8859428

約数列:

[1, 2, 4, 5, 10, 20, 571, 701, 1142, 1402, 2284, 2804, 2855, 3505, 5710, 7010, 11420, 14020, 400271, 800542, 1601084, 2001355, 4002710, 8005420]

約数ペア:

[(1, 8005420), (2, 4002710), (4, 2001355), (5, 1601084), (10, 800542), (20, 400271), (571, 14020), (701, 11420), (1142, 7010), (1402, 5710), (2284, 3505), (2804, 2855)]