256040008225

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{115074161}}^1$

素因数の和:115074260

約数の個数: 12

約数和(自身を含む): 321056911980

約数和(自身を除く): 65016903755

約数列:

[1, 5, 25, 89, 445, 2225, 115074161, 575370805, 2876854025, 10241600329, 51208001645, 256040008225]

約数ペア:

[(1, 256040008225), (5, 51208001645), (25, 10241600329), (89, 2876854025), (445, 575370805), (2225, 115074161)]