208830320

素因数分解:

$2^4\times 5^1\times {\mathrm{2610379}}^1$

素因数の和:2610392

約数の個数: 20

約数和(自身を含む): 485530680

約数和(自身を除く): 276700360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2610379, 5220758, 10441516, 13051895, 20883032, 26103790, 41766064, 52207580, 104415160, 208830320]

約数ペア:

[(1, 208830320), (2, 104415160), (4, 52207580), (5, 41766064), (8, 26103790), (10, 20883032), (16, 13051895), (20, 10441516), (40, 5220758), (80, 2610379)]