[tex]D_{72}=\left\{\pm1,\pm2,\pm3,\pm4,\pm6,\pm8,\pm9,\pm12,\pm18,\pm24,\pm36,\pm72\right\}[/tex]
[tex]D_{12}=\left\{\pm1,\pm2,\pm3,\pm4,\pm6,\pm12\right\}[/tex]
[tex]D_{10}=\left\{\pm1,\pm2,\pm5,\pm10\right\}[/tex]
[tex]D_{15}=\left\{\pm1,\pm3,\pm5,\pm15\right\}[/tex]
[tex]D_{21}=\left\{\pm1,\pm3,\pm7,\pm21\right\}[/tex]
[tex]D_{35}=\left\{\pm1,\pm5,\pm7,\pm35\right\}[/tex]
[tex]D_{144}=\left\{\pm1,\pm2,\pm3,\pm4,\pm6,\pm8,\pm9,\pm12,\pm16,\pm18,\pm24,\pm36,\pm48,\pm72,\pm144\right\}[/tex]
