20605540

素因数分解:

$2^2\times 5^1\times {\mathrm{757}}^1\times {\mathrm{1361}}^1$

素因数の和:2127

約数の個数: 24

約数和(自身を含む): 43360632

約数和(自身を除く): 22755092

約数列:

[1, 2, 4, 5, 10, 20, 757, 1361, 1514, 2722, 3028, 3785, 5444, 6805, 7570, 13610, 15140, 27220, 1030277, 2060554, 4121108, 5151385, 10302770, 20605540]

約数ペア:

[(1, 20605540), (2, 10302770), (4, 5151385), (5, 4121108), (10, 2060554), (20, 1030277), (757, 27220), (1361, 15140), (1514, 13610), (2722, 7570), (3028, 6805), (3785, 5444)]