12520475

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{4139}}^1$

素因数の和:4171

約数の個数: 18

約数和(自身を含む): 17069220

約数和(自身を除く): 4548745

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 4139, 20695, 45529, 103475, 227645, 500819, 1138225, 2504095, 12520475]

約数ペア:

[(1, 12520475), (5, 2504095), (11, 1138225), (25, 500819), (55, 227645), (121, 103475), (275, 45529), (605, 20695), (3025, 4139)]