128260706

素因数分解:

$2^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{20047}}^1$

素因数の和:20513

約数の個数: 16

約数和(自身を含む): 220367616

約数和(自身を除く): 92106910

約数列:

[1, 2, 7, 14, 457, 914, 3199, 6398, 20047, 40094, 140329, 280658, 9161479, 18322958, 64130353, 128260706]

約数ペア:

[(1, 128260706), (2, 64130353), (7, 18322958), (14, 9161479), (457, 280658), (914, 140329), (3199, 40094), (6398, 20047)]