666704725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{7883}}^1$

素因数の和:8109

約数の個数: 24

約数和(自身を含む): 879854400

約数和(自身を除く): 213149675

約数列:

[1, 5, 17, 25, 85, 199, 425, 995, 3383, 4975, 7883, 16915, 39415, 84575, 134011, 197075, 670055, 1568717, 3350275, 7843585, 26668189, 39217925, 133340945, 666704725]

約数ペア:

[(1, 666704725), (5, 133340945), (17, 39217925), (25, 26668189), (85, 7843585), (199, 3350275), (425, 1568717), (995, 670055), (3383, 197075), (4975, 134011), (7883, 84575), (16915, 39415)]