208076820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{495421}}^1$

素因数の和:495440

約数の個数: 48

約数和(自身を含む): 665847168

約数和(自身を除く): 457770348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 495421, 990842, 1486263, 1981684, 2477105, 2972526, 3467947, 4954210, 5945052, 6935894, 7431315, 9908420, 10403841, 13871788, 14862630, 17339735, 20807682, 29725260, 34679470, 41615364, 52019205, 69358940, 104038410, 208076820]

約数ペア:

[(1, 208076820), (2, 104038410), (3, 69358940), (4, 52019205), (5, 41615364), (6, 34679470), (7, 29725260), (10, 20807682), (12, 17339735), (14, 14862630), (15, 13871788), (20, 10403841), (21, 9908420), (28, 7431315), (30, 6935894), (35, 5945052), (42, 4954210), (60, 3467947), (70, 2972526), (84, 2477105), (105, 1981684), (140, 1486263), (210, 990842), (420, 495421)]