12820775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2027}}^1$

素因数の和:2071

約数の個数: 24

約数和(自身を含む): 18105984

約数和(自身を除く): 5285209

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 1265, 2027, 6325, 10135, 22297, 46621, 50675, 111485, 233105, 512831, 557425, 1165525, 2564155, 12820775]

約数ペア:

[(1, 12820775), (5, 2564155), (11, 1165525), (23, 557425), (25, 512831), (55, 233105), (115, 111485), (253, 50675), (275, 46621), (575, 22297), (1265, 10135), (2027, 6325)]