20229080

素因数分解:

$2^3\times 5^1\times {\mathrm{505727}}^1$

素因数の和:505738

約数の個数: 16

約数和(自身を含む): 45515520

約数和(自身を除く): 25286440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505727, 1011454, 2022908, 2528635, 4045816, 5057270, 10114540, 20229080]

約数ペア:

[(1, 20229080), (2, 10114540), (4, 5057270), (5, 4045816), (8, 2528635), (10, 2022908), (20, 1011454), (40, 505727)]