28157464

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 54237600

約数和(自身を除く): 26080136

約数列:

[1, 2, 4, 8, 71, 89, 142, 178, 284, 356, 557, 568, 712, 1114, 2228, 4456, 6319, 12638, 25276, 39547, 49573, 50552, 79094, 99146, 158188, 198292, 316376, 396584, 3519683, 7039366, 14078732, 28157464]

約数ペア:

[(1, 28157464), (2, 14078732), (4, 7039366), (8, 3519683), (71, 396584), (89, 316376), (142, 198292), (178, 158188), (284, 99146), (356, 79094), (557, 50552), (568, 49573), (712, 39547), (1114, 25276), (2228, 12638), (4456, 6319)]