A275240 Highly composite numbers of class 2 (see comment in A275239).

5, 9, 10, 20, 40, 80, 84, 192, 210, 288, 432, 480, 1200, 1320, 1800, 2640, 3600, 3780, 6480, 7200, 8400, 10920, 13860, 21840, 31680, 32760, 69300, 73920, 75600, 100800, 120120, 138600, 226800, 240240, 302400, 388080, 393120, 771120, 776160, 942480, 1310400

Offset: 1

Author

Vladimir Shevelev and Peter J. C. Moses, Jul 21 2016

Keywords

• nonn

Crossrefs

Cf. A002182, A275239, A275241, A275242, A275243, A275244.