208559920

素因数分解:

$2^4\times 5^1\times {\mathrm{2606999}}^1$

素因数の和:2607012

約数の個数: 20

約数和(自身を含む): 484902000

約数和(自身を除く): 276342080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2606999, 5213998, 10427996, 13034995, 20855992, 26069990, 41711984, 52139980, 104279960, 208559920]

約数ペア:

[(1, 208559920), (2, 104279960), (4, 52139980), (5, 41711984), (8, 26069990), (10, 20855992), (16, 13034995), (20, 10427996), (40, 5213998), (80, 2606999)]