81515605

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{45161}}^1$

素因数の和:45204

約数の個数: 12

約数和(自身を含む): 103240332

約数和(自身を除く): 21724727

約数列:

[1, 5, 19, 95, 361, 1805, 45161, 225805, 858059, 4290295, 16303121, 81515605]

約数ペア:

[(1, 81515605), (5, 16303121), (19, 4290295), (95, 858059), (361, 225805), (1805, 45161)]