43340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 99792

約数和(自身を除く): 56452

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 788, 985, 1970, 2167, 3940, 4334, 8668, 10835, 21670, 43340]

約数ペア:

[(1, 43340), (2, 21670), (4, 10835), (5, 8668), (10, 4334), (11, 3940), (20, 2167), (22, 1970), (44, 985), (55, 788), (110, 394), (197, 220)]