12687080

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6473}}^1$

素因数の和:6498

約数の個数: 48

約数和(自身を含む): 33211620

約数和(自身を除く): 20524540

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 6473, 12946, 25892, 32365, 45311, 51784, 64730, 90622, 129460, 181244, 226555, 258920, 317177, 362488, 453110, 634354, 906220, 1268708, 1585885, 1812440, 2537416, 3171770, 6343540, 12687080]

約数ペア:

[(1, 12687080), (2, 6343540), (4, 3171770), (5, 2537416), (7, 1812440), (8, 1585885), (10, 1268708), (14, 906220), (20, 634354), (28, 453110), (35, 362488), (40, 317177), (49, 258920), (56, 226555), (70, 181244), (98, 129460), (140, 90622), (196, 64730), (245, 51784), (280, 45311), (392, 32365), (490, 25892), (980, 12946), (1960, 6473)]