78982580

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{28411}}^1$

素因数の和:28559

約数の個数: 24

約数和(自身を含む): 167062560

約数和(自身を除く): 88079980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 28411, 56822, 113644, 142055, 284110, 568220, 3949129, 7898258, 15796516, 19745645, 39491290, 78982580]

約数ペア:

[(1, 78982580), (2, 39491290), (4, 19745645), (5, 15796516), (10, 7898258), (20, 3949129), (139, 568220), (278, 284110), (556, 142055), (695, 113644), (1390, 56822), (2780, 28411)]