15721845080

素因数分解:

$2^3\times 5^1\times {\mathrm{393046127}}^1$

素因数の和:393046138

約数の個数: 16

約数和(自身を含む): 35374151520

約数和(自身を除く): 19652306440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 393046127, 786092254, 1572184508, 1965230635, 3144369016, 3930461270, 7860922540, 15721845080]

約数ペア:

[(1, 15721845080), (2, 7860922540), (4, 3930461270), (5, 3144369016), (8, 1965230635), (10, 1572184508), (20, 786092254), (40, 393046127)]