18157029790

素因数分解:

$2^1\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{1219411}}^1$

素因数の和:1220907

約数の個数: 16

約数和(自身を含む): 32704629840

約数和(自身を除く): 14547600050

約数列:

[1, 2, 5, 10, 1489, 2978, 7445, 14890, 1219411, 2438822, 6097055, 12194110, 1815702979, 3631405958, 9078514895, 18157029790]

約数ペア:

[(1, 18157029790), (2, 9078514895), (5, 3631405958), (10, 1815702979), (1489, 12194110), (2978, 6097055), (7445, 2438822), (14890, 1219411)]