6640322020

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{409391}}^1$

素因数の和:410211

約数の個数: 24

約数和(自身を含む): 13961904768

約数和(自身を除く): 7321582748

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 3244, 4055, 8110, 16220, 409391, 818782, 1637564, 2046955, 4093910, 8187820, 332016101, 664032202, 1328064404, 1660080505, 3320161010, 6640322020]

約数ペア:

[(1, 6640322020), (2, 3320161010), (4, 1660080505), (5, 1328064404), (10, 664032202), (20, 332016101), (811, 8187820), (1622, 4093910), (3244, 2046955), (4055, 1637564), (8110, 818782), (16220, 409391)]