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Old 2019-04-07, 17:03   #35
nesio
 
Apr 2019

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Quote:
Originally Posted by ThiloHarich View Post
Sorry.

The sum of all divisors - not the prime divisors I thought of - can be higher then the number itself. So I misinterpreted your model.

So yes abundant numbers https://en.wikipedia.org/wiki/Abundant_number are good candidates.
But for example 105 and 15 are no such numbers but are good 'k'.
Sum means here the amount, quantity.

Last fiddled with by nesio on 2019-04-07 at 17:11 Reason: grammar correction
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