20087780

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1759}}^1$

素因数の和:2339

約数の個数: 24

約数和(自身を含む): 42282240

約数和(自身を除く): 22194460

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 1759, 2284, 2855, 3518, 5710, 7036, 8795, 11420, 17590, 35180, 1004389, 2008778, 4017556, 5021945, 10043890, 20087780]

約数ペア:

[(1, 20087780), (2, 10043890), (4, 5021945), (5, 4017556), (10, 2008778), (20, 1004389), (571, 35180), (1142, 17590), (1759, 11420), (2284, 8795), (2855, 7036), (3518, 5710)]