81063575

素因数分解:

$5^2\times {\mathrm{103}}^1\times {\mathrm{31481}}^1$

素因数の和:31594

約数の個数: 12

約数和(自身を含む): 101497968

約数和(自身を除く): 20434393

約数列:

[1, 5, 25, 103, 515, 2575, 31481, 157405, 787025, 3242543, 16212715, 81063575]

約数ペア:

[(1, 81063575), (5, 16212715), (25, 3242543), (103, 787025), (515, 157405), (2575, 31481)]