80709680

素因数分解:

$2^4\times 5^1\times {\mathrm{1008871}}^1$

素因数の和:1008884

約数の個数: 20

約数和(自身を含む): 187650192

約数和(自身を除く): 106940512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1008871, 2017742, 4035484, 5044355, 8070968, 10088710, 16141936, 20177420, 40354840, 80709680]

約数ペア:

[(1, 80709680), (2, 40354840), (4, 20177420), (5, 16141936), (8, 10088710), (10, 8070968), (16, 5044355), (20, 4035484), (40, 2017742), (80, 1008871)]