289420548080

素因数分解:

$2^4\times 5^1\times {\mathrm{3617756851}}^1$

素因数の和:3617756864

約数の個数: 20

約数和(自身を含む): 672902774472

約数和(自身を除く): 383482226392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3617756851, 7235513702, 14471027404, 18088784255, 28942054808, 36177568510, 57884109616, 72355137020, 144710274040, 289420548080]

約数ペア:

[(1, 289420548080), (2, 144710274040), (4, 72355137020), (5, 57884109616), (8, 36177568510), (10, 28942054808), (16, 18088784255), (20, 14471027404), (40, 7235513702), (80, 3617756851)]