890706488

素因数分解:

$2^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1\times {\mathrm{311}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 1931904000

約数和(自身を除く): 1041197512

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 199, 257, 311, 398, 514, 622, 796, 1028, 1244, 1393, 1592, 1799, 2056, 2177, 2488, 2786, 3598, 4354, 5572, 7196, 8708, 11144, 14392, 17416, 51143, 61889, 79927, 102286, 123778, 159854, 204572, 247556, 319708, 358001, 409144, 433223, 495112, 559489, 639416, 716002, 866446, 1118978, 1432004, 1732892, 2237956, 2864008, 3465784, 4475912, 15905473, 31810946, 63621892, 111338311, 127243784, 222676622, 445353244, 890706488]

約数ペア:

[(1, 890706488), (2, 445353244), (4, 222676622), (7, 127243784), (8, 111338311), (14, 63621892), (28, 31810946), (56, 15905473), (199, 4475912), (257, 3465784), (311, 2864008), (398, 2237956), (514, 1732892), (622, 1432004), (796, 1118978), (1028, 866446), (1244, 716002), (1393, 639416), (1592, 559489), (1799, 495112), (2056, 433223), (2177, 409144), (2488, 358001), (2786, 319708), (3598, 247556), (4354, 204572), (5572, 159854), (7196, 123778), (8708, 102286), (11144, 79927), (14392, 61889), (17416, 51143)]