80891075

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{8963}}^1$

素因数の和:9011

約数の個数: 18

約数和(自身を含む): 105873804

約数和(自身を除く): 24982729

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 8963, 9025, 44815, 170297, 224075, 851485, 3235643, 4257425, 16178215, 80891075]

約数ペア:

[(1, 80891075), (5, 16178215), (19, 4257425), (25, 3235643), (95, 851485), (361, 224075), (475, 170297), (1805, 44815), (8963, 9025)]