64087988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{2003}}^1$

素因数の和:2447

約数の個数: 24

約数和(自身を含む): 118396320

約数和(自身を除く): 54308332

約数列:

[1, 2, 4, 19, 38, 76, 421, 842, 1684, 2003, 4006, 7999, 8012, 15998, 31996, 38057, 76114, 152228, 843263, 1686526, 3373052, 16021997, 32043994, 64087988]

約数ペア:

[(1, 64087988), (2, 32043994), (4, 16021997), (19, 3373052), (38, 1686526), (76, 843263), (421, 152228), (842, 76114), (1684, 38057), (2003, 31996), (4006, 15998), (7999, 8012)]