81196325

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20173}}^1$

素因数の和:20213

約数の個数: 24

約数和(自身を含む): 120075648

約数和(自身を除く): 38879323

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 20173, 100865, 141211, 463979, 504325, 706055, 2319895, 3247853, 3530275, 11599475, 16239265, 81196325]

約数ペア:

[(1, 81196325), (5, 16239265), (7, 11599475), (23, 3530275), (25, 3247853), (35, 2319895), (115, 706055), (161, 504325), (175, 463979), (575, 141211), (805, 100865), (4025, 20173)]