Number of divisors of n-th highly composite number.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =8a(6) =9a(7) =10a(8) =12a(9) =16a(10) =18a(11) =20a(12) =24a(13) =30a(14) =32a(15) =36a(16) =40a(17) =48a(18) =60a(19) =64a(20) =72a(21) =80a(22) =84a(23) =90a(24) =96a(25) =100a(26) =108a(27) =120a(28) =128a(29) =144