389680

素因数分解:

$2^4\times 5^1\times {\mathrm{4871}}^1$

素因数の和:4884

約数の個数: 20

約数和(自身を含む): 906192

約数和(自身を除く): 516512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4871, 9742, 19484, 24355, 38968, 48710, 77936, 97420, 194840, 389680]

約数ペア:

[(1, 389680), (2, 194840), (4, 97420), (5, 77936), (8, 48710), (10, 38968), (16, 24355), (20, 19484), (40, 9742), (80, 4871)]