28066885

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{72901}}^1$

素因数の和:72924

約数の個数: 16

約数和(自身を含む): 41991552

約数和(自身を除く): 13924667

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 72901, 364505, 510307, 801911, 2551535, 4009555, 5613377, 28066885]

約数ペア:

[(1, 28066885), (5, 5613377), (7, 4009555), (11, 2551535), (35, 801911), (55, 510307), (77, 364505), (385, 72901)]