20042590

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28229}}^1$

素因数の和:28307

約数の個数: 16

約数和(自身を含む): 36586080

約数和(自身を除く): 16543490

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28229, 56458, 141145, 282290, 2004259, 4008518, 10021295, 20042590]

約数ペア:

[(1, 20042590), (2, 10021295), (5, 4008518), (10, 2004259), (71, 282290), (142, 141145), (355, 56458), (710, 28229)]