678889874

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1374271}}^1$

素因数の和:1374305

約数の個数: 16

約数和(自身を含む): 1154388480

約数和(自身を除く): 475498606

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 1374271, 2748542, 17865523, 26111149, 35731046, 52222298, 339444937, 678889874]

約数ペア:

[(1, 678889874), (2, 339444937), (13, 52222298), (19, 35731046), (26, 26111149), (38, 17865523), (247, 2748542), (494, 1374271)]