40520080

素因数分解:

$2^4\times 5^1\times {\mathrm{506501}}^1$

素因数の和:506514

約数の個数: 20

約数和(自身を含む): 94209372

約数和(自身を除く): 53689292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 506501, 1013002, 2026004, 2532505, 4052008, 5065010, 8104016, 10130020, 20260040, 40520080]

約数ペア:

[(1, 40520080), (2, 20260040), (4, 10130020), (5, 8104016), (8, 5065010), (10, 4052008), (16, 2532505), (20, 2026004), (40, 1013002), (80, 506501)]