81586845

素因数分解:

$3^4\times 5^1\times {\mathrm{201449}}^1$

素因数の和:201466

約数の個数: 20

約数和(自身を含む): 146252700

約数和(自身を除く): 64665855

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 201449, 604347, 1007245, 1813041, 3021735, 5439123, 9065205, 16317369, 27195615, 81586845]

約数ペア:

[(1, 81586845), (3, 27195615), (5, 16317369), (9, 9065205), (15, 5439123), (27, 3021735), (45, 1813041), (81, 1007245), (135, 604347), (405, 201449)]