20045080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45557}}^1$

素因数の和:45579

約数の個数: 32

約数和(自身を含む): 49202640

約数和(自身を除く): 29157560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45557, 91114, 182228, 227785, 364456, 455570, 501127, 911140, 1002254, 1822280, 2004508, 2505635, 4009016, 5011270, 10022540, 20045080]

約数ペア:

[(1, 20045080), (2, 10022540), (4, 5011270), (5, 4009016), (8, 2505635), (10, 2004508), (11, 1822280), (20, 1002254), (22, 911140), (40, 501127), (44, 455570), (55, 364456), (88, 227785), (110, 182228), (220, 91114), (440, 45557)]