15565745

素因数分解:

$5^1\times {\mathrm{13}}^4\times {\mathrm{109}}^1$

素因数の和:166

約数の個数: 20

約数和(自身を含む): 20421060

約数和(自身を除く): 4855315

約数列:

[1, 5, 13, 65, 109, 169, 545, 845, 1417, 2197, 7085, 10985, 18421, 28561, 92105, 142805, 239473, 1197365, 3113149, 15565745]

約数ペア:

[(1, 15565745), (5, 3113149), (13, 1197365), (65, 239473), (109, 142805), (169, 92105), (545, 28561), (845, 18421), (1417, 10985), (2197, 7085)]