219954680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{499897}}^1$

素因数の和:499919

約数の個数: 32

約数和(自身を含む): 539889840

約数和(自身を除く): 319935160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 499897, 999794, 1999588, 2499485, 3999176, 4998970, 5498867, 9997940, 10997734, 19995880, 21995468, 27494335, 43990936, 54988670, 109977340, 219954680]

約数ペア:

[(1, 219954680), (2, 109977340), (4, 54988670), (5, 43990936), (8, 27494335), (10, 21995468), (11, 19995880), (20, 10997734), (22, 9997940), (40, 5498867), (44, 4998970), (55, 3999176), (88, 2499485), (110, 1999588), (220, 999794), (440, 499897)]