219255025

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{72481}}^1$

素因数の和:72513

約数の個数: 18

約数和(自身を含む): 298843286

約数和(自身を除く): 79588261

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 72481, 362405, 797291, 1812025, 3986455, 8770201, 19932275, 43851005, 219255025]

約数ペア:

[(1, 219255025), (5, 43851005), (11, 19932275), (25, 8770201), (55, 3986455), (121, 1812025), (275, 797291), (605, 362405), (3025, 72481)]