Answer:
We can factor out 2a^3b from each term since it is a common factor:
2a^3b(5ab + 2a^2b + 2a^3b)
Then we can factor out another common factor of a^2b:
2a^2b(2ab + a^2 + ab^2)
Therefore, the fully factored expression is:
2a^2b(a^2 + ab + b^2)(5ab + 2a^2b + 2a^3b)