20802760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47279}}^1$

素因数の和:47301

約数の個数: 32

約数和(自身を含む): 51062400

約数和(自身を除く): 30259640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47279, 94558, 189116, 236395, 378232, 472790, 520069, 945580, 1040138, 1891160, 2080276, 2600345, 4160552, 5200690, 10401380, 20802760]

約数ペア:

[(1, 20802760), (2, 10401380), (4, 5200690), (5, 4160552), (8, 2600345), (10, 2080276), (11, 1891160), (20, 1040138), (22, 945580), (40, 520069), (44, 472790), (55, 378232), (88, 236395), (110, 189116), (220, 94558), (440, 47279)]