28678195

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{63029}}^1$

素因数の和:63054

約数の個数: 16

約数和(自身を含む): 42356160

約数和(自身を除く): 13677965

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 63029, 315145, 441203, 819377, 2206015, 4096885, 5735639, 28678195]

約数ペア:

[(1, 28678195), (5, 5735639), (7, 4096885), (13, 2206015), (35, 819377), (65, 441203), (91, 315145), (455, 63029)]