26000080

素因数分解:

$2^4\times 5^1\times {\mathrm{325001}}^1$

素因数の和:325014

約数の個数: 20

約数和(自身を含む): 60450372

約数和(自身を除く): 34450292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 325001, 650002, 1300004, 1625005, 2600008, 3250010, 5200016, 6500020, 13000040, 26000080]

約数ペア:

[(1, 26000080), (2, 13000040), (4, 6500020), (5, 5200016), (8, 3250010), (10, 2600008), (16, 1625005), (20, 1300004), (40, 650002), (80, 325001)]