21600080

素因数分解:

$2^4\times 5^1\times {\mathrm{270001}}^1$

素因数の和:270014

約数の個数: 20

約数和(自身を含む): 50220372

約数和(自身を除く): 28620292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 270001, 540002, 1080004, 1350005, 2160008, 2700010, 4320016, 5400020, 10800040, 21600080]

約数ペア:

[(1, 21600080), (2, 10800040), (4, 5400020), (5, 4320016), (8, 2700010), (10, 2160008), (16, 1350005), (20, 1080004), (40, 540002), (80, 270001)]