18564920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42193}}^1$

素因数の和:42215

約数の個数: 32

約数和(自身を含む): 45569520

約数和(自身を除く): 27004600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42193, 84386, 168772, 210965, 337544, 421930, 464123, 843860, 928246, 1687720, 1856492, 2320615, 3712984, 4641230, 9282460, 18564920]

約数ペア:

[(1, 18564920), (2, 9282460), (4, 4641230), (5, 3712984), (8, 2320615), (10, 1856492), (11, 1687720), (20, 928246), (22, 843860), (40, 464123), (44, 421930), (55, 337544), (88, 210965), (110, 168772), (220, 84386), (440, 42193)]