19820660

素因数分解:

$2^2\times 5^1\times {\mathrm{683}}^1\times {\mathrm{1451}}^1$

素因数の和:2143

約数の個数: 24

約数和(自身を含む): 41713056

約数和(自身を除く): 21892396

約数列:

[1, 2, 4, 5, 10, 20, 683, 1366, 1451, 2732, 2902, 3415, 5804, 6830, 7255, 13660, 14510, 29020, 991033, 1982066, 3964132, 4955165, 9910330, 19820660]

約数ペア:

[(1, 19820660), (2, 9910330), (4, 4955165), (5, 3964132), (10, 1982066), (20, 991033), (683, 29020), (1366, 14510), (1451, 13660), (2732, 7255), (2902, 6830), (3415, 5804)]