Sets record for f(n) = |{(a,b):a*b=n and a|b}|. Also squares of highly composite numbers A002182.

A046952

Sets record for f(n) = |{(a,b):a*b=n and a|b}|. Also squares of highly composite numbers A002182.

Terms

    a(0) =1a(1) =4a(2) =16a(3) =36a(4) =144a(5) =576a(6) =1296a(7) =2304a(8) =3600a(9) =14400a(10) =32400a(11) =57600a(12) =129600a(13) =518400a(14) =705600a(15) =1587600a(16) =2822400a(17) =6350400a(18) =25401600a(19) =57153600a(20) =101606400a(21) =228614400a(22) =406425600a(23) =635040000a(24) =768398400a(25) =2057529600a(26) =2540160000a(27) =3073593600

External references