Question

A nice number equals the product of its proper divisor. Find the sum of the first 10 nice numbers.

Answer 1

How you define a proper divisor ?

Answer 2

Is 1 and the number itself is proper ?

Answer 3

no

Answer 4

because a proper divisor is positive divisor that does not include the number 1 and the number itself

Answer 5

so 1 and the number itself is "negative divisors" ?

Answer 6

no, there are not... it should be positive integer... not positive divisors... my bad

Answer 7

proper divisor are basically numbers that divides a positive integer... i think :)