890447020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1085911}}^1$

素因数の和:1085961

約数の個数: 24

約数和(自身を含む): 1915548768

約数和(自身を除く): 1025101748

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1085911, 2171822, 4343644, 5429555, 10859110, 21718220, 44522351, 89044702, 178089404, 222611755, 445223510, 890447020]

約数ペア:

[(1, 890447020), (2, 445223510), (4, 222611755), (5, 178089404), (10, 89044702), (20, 44522351), (41, 21718220), (82, 10859110), (164, 5429555), (205, 4343644), (410, 2171822), (820, 1085911)]