257800895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{11689}}^1$

素因数の和:12106

約数の個数: 16

約数和(自身を含む): 338355360

約数和(自身を除く): 80554465

約数列:

[1, 5, 11, 55, 401, 2005, 4411, 11689, 22055, 58445, 128579, 642895, 4687289, 23436445, 51560179, 257800895]

約数ペア:

[(1, 257800895), (5, 51560179), (11, 23436445), (55, 4687289), (401, 642895), (2005, 128579), (4411, 58445), (11689, 22055)]