18270090380

素因数分解:

$2^2\times 5^1\times {\mathrm{913504519}}^1$

素因数の和:913504528

約数の個数: 12

約数和(自身を含む): 38367189840

約数和(自身を除く): 20097099460

約数列:

[1, 2, 4, 5, 10, 20, 913504519, 1827009038, 3654018076, 4567522595, 9135045190, 18270090380]

約数ペア:

[(1, 18270090380), (2, 9135045190), (4, 4567522595), (5, 3654018076), (10, 1827009038), (20, 913504519)]