28777385

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{63247}}^1$

素因数の和:63272

約数の個数: 16

約数和(自身を含む): 42502656

約数和(自身を除く): 13725271

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 63247, 316235, 442729, 822211, 2213645, 4111055, 5755477, 28777385]

約数ペア:

[(1, 28777385), (5, 5755477), (7, 4111055), (13, 2213645), (35, 822211), (65, 442729), (91, 316235), (455, 63247)]