20006980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142907}}^1$

素因数の和:142923

約数の個数: 24

約数和(自身を含む): 48017088

約数和(自身を除く): 28010108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142907, 285814, 571628, 714535, 1000349, 1429070, 2000698, 2858140, 4001396, 5001745, 10003490, 20006980]

約数ペア:

[(1, 20006980), (2, 10003490), (4, 5001745), (5, 4001396), (7, 2858140), (10, 2000698), (14, 1429070), (20, 1000349), (28, 714535), (35, 571628), (70, 285814), (140, 142907)]