199025420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{904661}}^1$

素因数の和:904681

約数の個数: 24

約数和(自身を含む): 455949648

約数和(自身を除く): 256924228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 904661, 1809322, 3618644, 4523305, 9046610, 9951271, 18093220, 19902542, 39805084, 49756355, 99512710, 199025420]

約数ペア:

[(1, 199025420), (2, 99512710), (4, 49756355), (5, 39805084), (10, 19902542), (11, 18093220), (20, 9951271), (22, 9046610), (44, 4523305), (55, 3618644), (110, 1809322), (220, 904661)]