20190245

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 25023600

約数和(自身を除く): 4833355

約数列:

[1, 5, 41, 149, 205, 661, 745, 3305, 6109, 27101, 30545, 98489, 135505, 492445, 4038049, 20190245]

約数ペア:

[(1, 20190245), (5, 4038049), (41, 492445), (149, 135505), (205, 98489), (661, 30545), (745, 27101), (3305, 6109)]