2220080

素因数分解:

$2^4\times 5^1\times {\mathrm{27751}}^1$

素因数の和:27764

約数の個数: 20

約数和(自身を含む): 5161872

約数和(自身を除く): 2941792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 27751, 55502, 111004, 138755, 222008, 277510, 444016, 555020, 1110040, 2220080]

約数ペア:

[(1, 2220080), (2, 1110040), (4, 555020), (5, 444016), (8, 277510), (10, 222008), (16, 138755), (20, 111004), (40, 55502), (80, 27751)]