20798499260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13505519}}^1$

素因数の和:13505546

約数の個数: 48

約数和(自身を含む): 54454256640

約数和(自身を除く): 33655757380

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13505519, 27011038, 54022076, 67527595, 94538633, 135055190, 148560709, 189077266, 270110380, 297121418, 378154532, 472693165, 594242836, 742803545, 945386330, 1039924963, 1485607090, 1890772660, 2079849926, 2971214180, 4159699852, 5199624815, 10399249630, 20798499260]

約数ペア:

[(1, 20798499260), (2, 10399249630), (4, 5199624815), (5, 4159699852), (7, 2971214180), (10, 2079849926), (11, 1890772660), (14, 1485607090), (20, 1039924963), (22, 945386330), (28, 742803545), (35, 594242836), (44, 472693165), (55, 378154532), (70, 297121418), (77, 270110380), (110, 189077266), (140, 148560709), (154, 135055190), (220, 94538633), (308, 67527595), (385, 54022076), (770, 27011038), (1540, 13505519)]