813236440

素因数分解:

$2^3\times 5^1\times {\mathrm{20330911}}^1$

素因数の和:20330922

約数の個数: 16

約数和(自身を含む): 1829782080

約数和(自身を除く): 1016545640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20330911, 40661822, 81323644, 101654555, 162647288, 203309110, 406618220, 813236440]

約数ペア:

[(1, 813236440), (2, 406618220), (4, 203309110), (5, 162647288), (8, 101654555), (10, 81323644), (20, 40661822), (40, 20330911)]