9989780

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1627}}^1$

素因数の和:1943

約数の個数: 24

約数和(自身を含む): 21059808

約数和(自身を除く): 11070028

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 1627, 3070, 3254, 6140, 6508, 8135, 16270, 32540, 499489, 998978, 1997956, 2497445, 4994890, 9989780]

約数ペア:

[(1, 9989780), (2, 4994890), (4, 2497445), (5, 1997956), (10, 998978), (20, 499489), (307, 32540), (614, 16270), (1228, 8135), (1535, 6508), (1627, 6140), (3070, 3254)]