28985445

素因数分解:

$3^4\times 5^1\times {\mathrm{71569}}^1$

素因数の和:71586

約数の個数: 20

約数和(自身を含む): 51959820

約数和(自身を除く): 22974375

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71569, 214707, 357845, 644121, 1073535, 1932363, 3220605, 5797089, 9661815, 28985445]

約数ペア:

[(1, 28985445), (3, 9661815), (5, 5797089), (9, 3220605), (15, 1932363), (27, 1073535), (45, 644121), (81, 357845), (135, 214707), (405, 71569)]