81777025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{297371}}^1$

素因数の和:297392

約数の個数: 12

約数和(自身を含む): 110622384

約数和(自身を除く): 28845359

約数列:

[1, 5, 11, 25, 55, 275, 297371, 1486855, 3271081, 7434275, 16355405, 81777025]

約数ペア:

[(1, 81777025), (5, 16355405), (11, 7434275), (25, 3271081), (55, 1486855), (275, 297371)]