331159280

素因数分解:

$2^4\times 5^1\times {\mathrm{4139491}}^1$

素因数の和:4139504

約数の個数: 20

約数和(自身を含む): 769945512

約数和(自身を除く): 438786232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4139491, 8278982, 16557964, 20697455, 33115928, 41394910, 66231856, 82789820, 165579640, 331159280]

約数ペア:

[(1, 331159280), (2, 165579640), (4, 82789820), (5, 66231856), (8, 41394910), (10, 33115928), (16, 20697455), (20, 16557964), (40, 8278982), (80, 4139491)]