7991840

素因数分解:

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

素因数の和:465

約数の個数: 48

約数和(自身を含む): 19051200

約数和(自身を除く): 11059360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 251, 398, 502, 796, 995, 1004, 1255, 1592, 1990, 2008, 2510, 3184, 3980, 4016, 5020, 6368, 7960, 8032, 10040, 15920, 20080, 31840, 40160, 49949, 99898, 199796, 249745, 399592, 499490, 799184, 998980, 1598368, 1997960, 3995920, 7991840]

約数ペア:

[(1, 7991840), (2, 3995920), (4, 1997960), (5, 1598368), (8, 998980), (10, 799184), (16, 499490), (20, 399592), (32, 249745), (40, 199796), (80, 99898), (160, 49949), (199, 40160), (251, 31840), (398, 20080), (502, 15920), (796, 10040), (995, 8032), (1004, 7960), (1255, 6368), (1592, 5020), (1990, 4016), (2008, 3980), (2510, 3184)]