2551460

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{661}}^1$

素因数の和:863

約数の個数: 24

約数和(自身を含む): 5393976

約数和(自身を除く): 2842516

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 661, 772, 965, 1322, 1930, 2644, 3305, 3860, 6610, 13220, 127573, 255146, 510292, 637865, 1275730, 2551460]

約数ペア:

[(1, 2551460), (2, 1275730), (4, 637865), (5, 510292), (10, 255146), (20, 127573), (193, 13220), (386, 6610), (661, 3860), (772, 3305), (965, 2644), (1322, 1930)]