abundant
Yes, this is well known. All integral multiples of any perfect, or abundant number must be an abundant number.
In number theory, an abundant number is a number for which the sum of its proper divisors is greater than the number itself.
No.
No.
Yes, 25 is an abundant number because the sum of its proper divisors (1, 5) is greater than the number itself (25 < 6).
It's deficient
60 is abundant.
If a number is not abundant it cannot be made abundant!
No, 29 is not an abundant number.
abundant
67 is an abundant number.
72 is an abundant number.
abundant
350 is an abundant number.
945 is the first odd abundant number.
No, 73 is not an abundant number.