20147020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21433}}^1$

素因数の和:21489

約数の個数: 24

約数和(自身を含む): 43210944

約数和(自身を除く): 23063924

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21433, 42866, 85732, 107165, 214330, 428660, 1007351, 2014702, 4029404, 5036755, 10073510, 20147020]

約数ペア:

[(1, 20147020), (2, 10073510), (4, 5036755), (5, 4029404), (10, 2014702), (20, 1007351), (47, 428660), (94, 214330), (188, 107165), (235, 85732), (470, 42866), (940, 21433)]