81130175

素因数分解:

$5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{5209}}^1$

素因数の和:5315

約数の個数: 24

約数和(自身を含む): 116287200

約数和(自身を除く): 35157025

約数列:

[1, 5, 7, 25, 35, 89, 175, 445, 623, 2225, 3115, 5209, 15575, 26045, 36463, 130225, 182315, 463601, 911575, 2318005, 3245207, 11590025, 16226035, 81130175]

約数ペア:

[(1, 81130175), (5, 16226035), (7, 11590025), (25, 3245207), (35, 2318005), (89, 911575), (175, 463601), (445, 182315), (623, 130225), (2225, 36463), (3115, 26045), (5209, 15575)]