13. 2016 は約数がいっぱいあるから
面白い数式がたくさんつくれるよ〜
みなさんも 2016 で遊んでみてね♪
2016 = 25 x 32 x 7
= 1 x 2016 = 2 x 1008 = 3 x 672
= 4 x 504 = 6 x 336 = 7 x 288
= 8 x 252 = 9 x 224 = 12 x 168
= 14 x 144 = 16 x 126 = 18 x 112
= 21 x 96 = 24 x 84 = 28 x 72
= 32 x 63 = 36 x 56 = 42 x 48