19903184

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:280

約数の個数: 80

約数和(自身を含む): 47616000

約数和(自身を除く): 27712816

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 47, 56, 76, 94, 112, 133, 152, 188, 199, 266, 304, 329, 376, 398, 532, 658, 752, 796, 893, 1064, 1316, 1393, 1592, 1786, 2128, 2632, 2786, 3184, 3572, 3781, 5264, 5572, 6251, 7144, 7562, 9353, 11144, 12502, 14288, 15124, 18706, 22288, 25004, 26467, 30248, 37412, 50008, 52934, 60496, 65471, 74824, 100016, 105868, 130942, 149648, 177707, 211736, 261884, 355414, 423472, 523768, 710828, 1047536, 1243949, 1421656, 2487898, 2843312, 4975796, 9951592, 19903184]

約数ペア:

[(1, 19903184), (2, 9951592), (4, 4975796), (7, 2843312), (8, 2487898), (14, 1421656), (16, 1243949), (19, 1047536), (28, 710828), (38, 523768), (47, 423472), (56, 355414), (76, 261884), (94, 211736), (112, 177707), (133, 149648), (152, 130942), (188, 105868), (199, 100016), (266, 74824), (304, 65471), (329, 60496), (376, 52934), (398, 50008), (532, 37412), (658, 30248), (752, 26467), (796, 25004), (893, 22288), (1064, 18706), (1316, 15124), (1393, 14288), (1592, 12502), (1786, 11144), (2128, 9353), (2632, 7562), (2786, 7144), (3184, 6251), (3572, 5572), (3781, 5264)]