Records for sum of proper divisors function A001065.

Terms

a(0) =0a(1) =1a(2) =3a(3) =6a(4) =7a(5) =8a(6) =16a(7) =21a(8) =22a(9) =36a(10) =42a(11) =55a(12) =76a(13) =108a(14) =123a(15) =140a(16) =144a(17) =156a(18) =172a(19) =240a(20) =259a(21) =312a(22) =366a(23) =384a(24) =504a(25) =531a(26) =568a(27) =656a(28) =810a(29) =924