87256720

素因数分解:

$2^4\times 5^1\times {\mathrm{1090709}}^1$

素因数の和:1090722

約数の個数: 20

約数和(自身を含む): 202872060

約数和(自身を除く): 115615340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1090709, 2181418, 4362836, 5453545, 8725672, 10907090, 17451344, 21814180, 43628360, 87256720]

約数ペア:

[(1, 87256720), (2, 43628360), (4, 21814180), (5, 17451344), (8, 10907090), (10, 8725672), (16, 5453545), (20, 4362836), (40, 2181418), (80, 1090709)]