18810860

素因数分解:

$2^2\times 5^1\times {\mathrm{940543}}^1$

素因数の和:940552

約数の個数: 12

約数和(自身を含む): 39502848

約数和(自身を除く): 20691988

約数列:

[1, 2, 4, 5, 10, 20, 940543, 1881086, 3762172, 4702715, 9405430, 18810860]

約数ペア:

[(1, 18810860), (2, 9405430), (4, 4702715), (5, 3762172), (10, 1881086), (20, 940543)]