Untouchable numbers, also called nonaliquot numbers: impossible values for the sum of aliquot parts function (A001065).

A005114

Untouchable numbers, also called nonaliquot numbers: impossible values for the sum of aliquot parts function (A001065).

Terms

    a(0) =2a(1) =5a(2) =52a(3) =88a(4) =96a(5) =120a(6) =124a(7) =146a(8) =162a(9) =188a(10) =206a(11) =210a(12) =216a(13) =238a(14) =246a(15) =248a(16) =262a(17) =268a(18) =276a(19) =288a(20) =290a(21) =292a(22) =304a(23) =306a(24) =322a(25) =324a(26) =326a(27) =336a(28) =342a(29) =372

External references