8222780

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2087}}^1$

素因数の和:2293

約数の個数: 24

約数和(自身を含む): 17363808

約数和(自身を除く): 9141028

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 2087, 3940, 4174, 8348, 10435, 20870, 41740, 411139, 822278, 1644556, 2055695, 4111390, 8222780]

約数ペア:

[(1, 8222780), (2, 4111390), (4, 2055695), (5, 1644556), (10, 822278), (20, 411139), (197, 41740), (394, 20870), (788, 10435), (985, 8348), (1970, 4174), (2087, 3940)]