208027508

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{307733}}^1$

素因数の和:307763

約数の個数: 18

約数和(自身を含む): 394207254

約数和(自身を除く): 186179746

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 307733, 615466, 1230932, 4000529, 8001058, 16002116, 52006877, 104013754, 208027508]

約数ペア:

[(1, 208027508), (2, 104013754), (4, 52006877), (13, 16002116), (26, 8001058), (52, 4000529), (169, 1230932), (338, 615466), (676, 307733)]