117664720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:620

約数の個数: 80

約数和(自身を含む): 290160000

約数和(自身を除く): 172495280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 199, 304, 380, 389, 398, 760, 778, 796, 995, 1520, 1556, 1592, 1945, 1990, 3112, 3184, 3781, 3890, 3980, 6224, 7391, 7562, 7780, 7960, 14782, 15124, 15560, 15920, 18905, 29564, 30248, 31120, 36955, 37810, 59128, 60496, 73910, 75620, 77411, 118256, 147820, 151240, 154822, 295640, 302480, 309644, 387055, 591280, 619288, 774110, 1238576, 1470809, 1548220, 2941618, 3096440, 5883236, 6192880, 7354045, 11766472, 14708090, 23532944, 29416180, 58832360, 117664720]

約数ペア:

[(1, 117664720), (2, 58832360), (4, 29416180), (5, 23532944), (8, 14708090), (10, 11766472), (16, 7354045), (19, 6192880), (20, 5883236), (38, 3096440), (40, 2941618), (76, 1548220), (80, 1470809), (95, 1238576), (152, 774110), (190, 619288), (199, 591280), (304, 387055), (380, 309644), (389, 302480), (398, 295640), (760, 154822), (778, 151240), (796, 147820), (995, 118256), (1520, 77411), (1556, 75620), (1592, 73910), (1945, 60496), (1990, 59128), (3112, 37810), (3184, 36955), (3781, 31120), (3890, 30248), (3980, 29564), (6224, 18905), (7391, 15920), (7562, 15560), (7780, 15124), (7960, 14782)]