20418105

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{80071}}^1$

素因数の和:80096

約数の個数: 16

約数和(自身を含む): 34591104

約数和(自身を除く): 14172999

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 80071, 240213, 400355, 1201065, 1361207, 4083621, 6806035, 20418105]

約数ペア:

[(1, 20418105), (3, 6806035), (5, 4083621), (15, 1361207), (17, 1201065), (51, 400355), (85, 240213), (255, 80071)]