8420080

素因数分解:

$2^4\times 5^1\times {\mathrm{105251}}^1$

素因数の和:105264

約数の個数: 20

約数和(自身を含む): 19576872

約数和(自身を除く): 11156792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 105251, 210502, 421004, 526255, 842008, 1052510, 1684016, 2105020, 4210040, 8420080]

約数ペア:

[(1, 8420080), (2, 4210040), (4, 2105020), (5, 1684016), (8, 1052510), (10, 842008), (16, 526255), (20, 421004), (40, 210502), (80, 105251)]