200520080

素因数分解:

$2^4\times 5^1\times {\mathrm{2506501}}^1$

素因数の和:2506514

約数の個数: 20

約数和(自身を含む): 466209372

約数和(自身を除く): 265689292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2506501, 5013002, 10026004, 12532505, 20052008, 25065010, 40104016, 50130020, 100260040, 200520080]

約数ペア:

[(1, 200520080), (2, 100260040), (4, 50130020), (5, 40104016), (8, 25065010), (10, 20052008), (16, 12532505), (20, 10026004), (40, 5013002), (80, 2506501)]