20286220

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1319}}^1$

素因数の和:2097

約数の個数: 24

約数和(自身を含む): 42688800

約数和(自身を除く): 22402580

約数列:

[1, 2, 4, 5, 10, 20, 769, 1319, 1538, 2638, 3076, 3845, 5276, 6595, 7690, 13190, 15380, 26380, 1014311, 2028622, 4057244, 5071555, 10143110, 20286220]

約数ペア:

[(1, 20286220), (2, 10143110), (4, 5071555), (5, 4057244), (10, 2028622), (20, 1014311), (769, 26380), (1319, 15380), (1538, 13190), (2638, 7690), (3076, 6595), (3845, 5276)]