389634680

素因数分解:

$2^3\times 5^1\times {\mathrm{9740867}}^1$

素因数の和:9740878

約数の個数: 16

約数和(自身を含む): 876678120

約数和(自身を除く): 487043440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9740867, 19481734, 38963468, 48704335, 77926936, 97408670, 194817340, 389634680]

約数ペア:

[(1, 389634680), (2, 194817340), (4, 97408670), (5, 77926936), (8, 48704335), (10, 38963468), (20, 19481734), (40, 9740867)]