199944440

素因数分解:

$2^3\times 5^1\times {\mathrm{4998611}}^1$

素因数の和:4998622

約数の個数: 16

約数和(自身を含む): 449875080

約数和(自身を除く): 249930640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4998611, 9997222, 19994444, 24993055, 39988888, 49986110, 99972220, 199944440]

約数ペア:

[(1, 199944440), (2, 99972220), (4, 49986110), (5, 39988888), (8, 24993055), (10, 19994444), (20, 9997222), (40, 4998611)]