60
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1, 2, 3, 4, 6, 8, 12, 24 (sum = 60)
Sum of divisors: 1,392.
Sum of divisors of 130 = 252.
15
lets see...prime factorization of 100, 2,2,5,5 so divisors are 2,4,10,20,25,50 so the sum is 111 unless you want to include 1 and 100 then the sum is 212