20601080

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1459}}^1$

素因数の和:1823

約数の個数: 32

約数和(自身を含む): 46515600

約数和(自身を除く): 25914520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1459, 1765, 2824, 2918, 3530, 5836, 7060, 7295, 11672, 14120, 14590, 29180, 58360, 515027, 1030054, 2060108, 2575135, 4120216, 5150270, 10300540, 20601080]

約数ペア:

[(1, 20601080), (2, 10300540), (4, 5150270), (5, 4120216), (8, 2575135), (10, 2060108), (20, 1030054), (40, 515027), (353, 58360), (706, 29180), (1412, 14590), (1459, 14120), (1765, 11672), (2824, 7295), (2918, 7060), (3530, 5836)]