8271980

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2143}}^1$

素因数の和:2345

約数の個数: 24

約数和(自身を含む): 17469312

約数和(自身を除く): 9197332

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 2143, 3860, 4286, 8572, 10715, 21430, 42860, 413599, 827198, 1654396, 2067995, 4135990, 8271980]

約数ペア:

[(1, 8271980), (2, 4135990), (4, 2067995), (5, 1654396), (10, 827198), (20, 413599), (193, 42860), (386, 21430), (772, 10715), (965, 8572), (1930, 4286), (2143, 3860)]