2220221560

素因数分解:

$2^3\times 5^1\times {\mathrm{55505539}}^1$

素因数の和:55505550

約数の個数: 16

約数和(自身を含む): 4995498600

約数和(自身を除く): 2775277040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 55505539, 111011078, 222022156, 277527695, 444044312, 555055390, 1110110780, 2220221560]

約数ペア:

[(1, 2220221560), (2, 1110110780), (4, 555055390), (5, 444044312), (8, 277527695), (10, 222022156), (20, 111011078), (40, 55505539)]