41
15 and 2
41
2 + 3 + 5 = 10
A perfect number, like 6.
3, 12, 30
The number 30 is a perfect number. A perfect number is defined as a positive integer that is equal to the sum of its proper divisors, excluding itself. The proper divisors of 30 are 1, 2, 3, 5, 6, and 15, which sum to 30. However, it should be noted that 30 is actually classified as an abundant number because the sum of its proper divisors (1 + 2 + 3 + 5 + 6 + 15 = 32) is greater than 30.
The number 30 is considered a deficient number. An abundant number is one where the sum of its proper divisors (excluding itself) is greater than the number itself, while a deficient number has a sum of proper divisors that is less than the number. The proper divisors of 30 are 1, 2, 3, 5, 6, and 15, which sum to 32. Since 32 is greater than 30, 30 is actually classified as an abundant number, not deficient.
The least common factor of any set of integers is 1.
a proper factor is a factor.
It is 15*(1 + 2)
(5 x 6) + (9 x 6) = 14 x 6 = 84
154 is the sum of the proper factors of 256.