20109712

素因数分解:

$2^4\times 7^1\times {\mathrm{409}}^1\times {\mathrm{439}}^1$

素因数の和:863

約数の個数: 40

約数和(自身を含む): 44739200

約数和(自身を除く): 24629488

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 409, 439, 818, 878, 1636, 1756, 2863, 3073, 3272, 3512, 5726, 6146, 6544, 7024, 11452, 12292, 22904, 24584, 45808, 49168, 179551, 359102, 718204, 1256857, 1436408, 2513714, 2872816, 5027428, 10054856, 20109712]

約数ペア:

[(1, 20109712), (2, 10054856), (4, 5027428), (7, 2872816), (8, 2513714), (14, 1436408), (16, 1256857), (28, 718204), (56, 359102), (112, 179551), (409, 49168), (439, 45808), (818, 24584), (878, 22904), (1636, 12292), (1756, 11452), (2863, 7024), (3073, 6544), (3272, 6146), (3512, 5726)]