28721000825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{104440003}}^1$

素因数の和:104440024

約数の個数: 12

約数和(自身を含む): 38851681488

約数和(自身を除く): 10130680663

約数列:

[1, 5, 11, 25, 55, 275, 104440003, 522200015, 1148840033, 2611000075, 5744200165, 28721000825]

約数ペア:

[(1, 28721000825), (5, 5744200165), (11, 2611000075), (25, 1148840033), (55, 522200015), (275, 104440003)]