20171421680

素因数分解:

$2^4\times 5^1\times {\mathrm{252142771}}^1$

素因数の和:252142784

約数の個数: 20

約数和(自身を含む): 46898555592

約数和(自身を除く): 26727133912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252142771, 504285542, 1008571084, 1260713855, 2017142168, 2521427710, 4034284336, 5042855420, 10085710840, 20171421680]

約数ペア:

[(1, 20171421680), (2, 10085710840), (4, 5042855420), (5, 4034284336), (8, 2521427710), (10, 2017142168), (16, 1260713855), (20, 1008571084), (40, 504285542), (80, 252142771)]