20542211870

素因数分解:

$2^1\times 5^1\times {\mathrm{7541}}^1\times {\mathrm{272407}}^1$

素因数の和:279955

約数の個数: 16

約数和(自身を含む): 36981020448

約数和(自身を除く): 16438808578

約数列:

[1, 2, 5, 10, 7541, 15082, 37705, 75410, 272407, 544814, 1362035, 2724070, 2054221187, 4108442374, 10271105935, 20542211870]

約数ペア:

[(1, 20542211870), (2, 10271105935), (5, 4108442374), (10, 2054221187), (7541, 2724070), (15082, 1362035), (37705, 544814), (75410, 272407)]