20665030

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{121559}}^1$

素因数の和:121583

約数の個数: 16

約数和(自身を含む): 39385440

約数和(自身を除く): 18720410

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 121559, 243118, 607795, 1215590, 2066503, 4133006, 10332515, 20665030]

約数ペア:

[(1, 20665030), (2, 10332515), (5, 4133006), (10, 2066503), (17, 1215590), (34, 607795), (85, 243118), (170, 121559)]