18716740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{133691}}^1$

素因数の和:133707

約数の個数: 24

約数和(自身を含む): 44920512

約数和(自身を除く): 26203772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 133691, 267382, 534764, 668455, 935837, 1336910, 1871674, 2673820, 3743348, 4679185, 9358370, 18716740]

約数ペア:

[(1, 18716740), (2, 9358370), (4, 4679185), (5, 3743348), (7, 2673820), (10, 1871674), (14, 1336910), (20, 935837), (28, 668455), (35, 534764), (70, 267382), (140, 133691)]