789680

素因数分解:

$2^4\times 5^1\times {\mathrm{9871}}^1$

素因数の和:9884

約数の個数: 20

約数和(自身を含む): 1836192

約数和(自身を除く): 1046512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9871, 19742, 39484, 49355, 78968, 98710, 157936, 197420, 394840, 789680]

約数ペア:

[(1, 789680), (2, 394840), (4, 197420), (5, 157936), (8, 98710), (10, 78968), (16, 49355), (20, 39484), (40, 19742), (80, 9871)]