3995920

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:463

約数の個数: 40

約数和(自身を含む): 9374400

約数和(自身を除く): 5378480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 251, 398, 502, 796, 995, 1004, 1255, 1592, 1990, 2008, 2510, 3184, 3980, 4016, 5020, 7960, 10040, 15920, 20080, 49949, 99898, 199796, 249745, 399592, 499490, 799184, 998980, 1997960, 3995920]

約数ペア:

[(1, 3995920), (2, 1997960), (4, 998980), (5, 799184), (8, 499490), (10, 399592), (16, 249745), (20, 199796), (40, 99898), (80, 49949), (199, 20080), (251, 15920), (398, 10040), (502, 7960), (796, 5020), (995, 4016), (1004, 3980), (1255, 3184), (1592, 2510), (1990, 2008)]