22220080

素因数分解:

$2^4\times 5^1\times {\mathrm{277751}}^1$

素因数の和:277764

約数の個数: 20

約数和(自身を含む): 51661872

約数和(自身を除く): 29441792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277751, 555502, 1111004, 1388755, 2222008, 2777510, 4444016, 5555020, 11110040, 22220080]

約数ペア:

[(1, 22220080), (2, 11110040), (4, 5555020), (5, 4444016), (8, 2777510), (10, 2222008), (16, 1388755), (20, 1111004), (40, 555502), (80, 277751)]