28130305

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{19603}}^1$

素因数の和:19656

約数の個数: 16

約数和(自身を含む): 39521664

約数和(自身を除く): 11391359

約数列:

[1, 5, 7, 35, 41, 205, 287, 1435, 19603, 98015, 137221, 686105, 803723, 4018615, 5626061, 28130305]

約数ペア:

[(1, 28130305), (5, 5626061), (7, 4018615), (35, 803723), (41, 686105), (205, 137221), (287, 98015), (1435, 19603)]