28426820

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{14653}}^1$

素因数の和:14759

約数の個数: 24

約数和(自身を含む): 60315864

約数和(自身を除く): 31889044

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 14653, 29306, 58612, 73265, 146530, 293060, 1421341, 2842682, 5685364, 7106705, 14213410, 28426820]

約数ペア:

[(1, 28426820), (2, 14213410), (4, 7106705), (5, 5685364), (10, 2842682), (20, 1421341), (97, 293060), (194, 146530), (388, 73265), (485, 58612), (970, 29306), (1940, 14653)]