1808840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4111}}^1$

素因数の和:4133

約数の個数: 32

約数和(自身を含む): 4440960

約数和(自身を除く): 2632120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 4111, 8222, 16444, 20555, 32888, 41110, 45221, 82220, 90442, 164440, 180884, 226105, 361768, 452210, 904420, 1808840]

約数ペア:

[(1, 1808840), (2, 904420), (4, 452210), (5, 361768), (8, 226105), (10, 180884), (11, 164440), (20, 90442), (22, 82220), (40, 45221), (44, 41110), (55, 32888), (88, 20555), (110, 16444), (220, 8222), (440, 4111)]