858904420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3904111}}^1$

素因数の和:3904131

約数の個数: 24

約数和(自身を含む): 1967672448

約数和(自身を除く): 1108768028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 3904111, 7808222, 15616444, 19520555, 39041110, 42945221, 78082220, 85890442, 171780884, 214726105, 429452210, 858904420]

約数ペア:

[(1, 858904420), (2, 429452210), (4, 214726105), (5, 171780884), (10, 85890442), (11, 78082220), (20, 42945221), (22, 39041110), (44, 19520555), (55, 15616444), (110, 7808222), (220, 3904111)]