multiplication table

[Skaperen]

i was looking at a copy of an old multiplication table. the top row had 1 through 9. the left column had 1 through 9. the lowest product is 1. the highest product is 81. there are 81 products in the table. the sum of all these products is what? how many people can write Python code to find that sum?

[Gribouillis]

Here is my code

print( (9 * (9 + 1) // 2) ** 2 )

Ahah! Interesting output!

[Azdaghost]

I'm pretty stupid but I tried

sum = 0

for a in range(1, 9):
    for b in range(1, 9):
        sum += (a * b) / 9

print(sum)

I got 144.0