257740985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{5437}}^1$

素因数の和:5960

約数の個数: 16

約数和(自身を含む): 326280000

約数和(自身を除く): 68539015

約数列:

[1, 5, 19, 95, 499, 2495, 5437, 9481, 27185, 47405, 103303, 516515, 2713063, 13565315, 51548197, 257740985]

約数ペア:

[(1, 257740985), (5, 51548197), (19, 13565315), (95, 2713063), (499, 516515), (2495, 103303), (5437, 47405), (9481, 27185)]