1490838220

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{187763}}^1$

素因数の和:188169

約数の個数: 24

約数和(自身を含む): 3138663024

約数和(自身を除く): 1647824804

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 187763, 375526, 751052, 938815, 1877630, 3755260, 74541911, 149083822, 298167644, 372709555, 745419110, 1490838220]

約数ペア:

[(1, 1490838220), (2, 745419110), (4, 372709555), (5, 298167644), (10, 149083822), (20, 74541911), (397, 3755260), (794, 1877630), (1588, 938815), (1985, 751052), (3970, 375526), (7940, 187763)]