208720090

素因数分解:

$2^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{67987}}^1$

素因数の和:68301

約数の個数: 16

約数和(自身を含む): 376925472

約数和(自身を除く): 168205382

約数列:

[1, 2, 5, 10, 307, 614, 1535, 3070, 67987, 135974, 339935, 679870, 20872009, 41744018, 104360045, 208720090]

約数ペア:

[(1, 208720090), (2, 104360045), (5, 41744018), (10, 20872009), (307, 679870), (614, 339935), (1535, 135974), (3070, 67987)]