28672220

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{8009}}^1$

素因数の和:8197

約数の個数: 24

約数和(自身を含む): 60555600

約数和(自身を除く): 31883380

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 8009, 16018, 32036, 40045, 80090, 160180, 1433611, 2867222, 5734444, 7168055, 14336110, 28672220]

約数ペア:

[(1, 28672220), (2, 14336110), (4, 7168055), (5, 5734444), (10, 2867222), (20, 1433611), (179, 160180), (358, 80090), (716, 40045), (895, 32036), (1790, 16018), (3580, 8009)]