20009020

素因数分解:

$2^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{1777}}^1$

素因数の和:2349

約数の個数: 24

約数和(自身を含む): 42117264

約数和(自身を除く): 22108244

約数列:

[1, 2, 4, 5, 10, 20, 563, 1126, 1777, 2252, 2815, 3554, 5630, 7108, 8885, 11260, 17770, 35540, 1000451, 2000902, 4001804, 5002255, 10004510, 20009020]

約数ペア:

[(1, 20009020), (2, 10004510), (4, 5002255), (5, 4001804), (10, 2000902), (20, 1000451), (563, 35540), (1126, 17770), (1777, 11260), (2252, 8885), (2815, 7108), (3554, 5630)]