20705080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47057}}^1$

素因数の和:47079

約数の個数: 32

約数和(自身を含む): 50822640

約数和(自身を除く): 30117560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47057, 94114, 188228, 235285, 376456, 470570, 517627, 941140, 1035254, 1882280, 2070508, 2588135, 4141016, 5176270, 10352540, 20705080]

約数ペア:

[(1, 20705080), (2, 10352540), (4, 5176270), (5, 4141016), (8, 2588135), (10, 2070508), (11, 1882280), (20, 1035254), (22, 941140), (40, 517627), (44, 470570), (55, 376456), (88, 235285), (110, 188228), (220, 94114), (440, 47057)]