2156844080

素因数分解:

$2^4\times 5^1\times {\mathrm{26960551}}^1$

素因数の和:26960564

約数の個数: 20

約数和(自身を含む): 5014662672

約数和(自身を除く): 2857818592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26960551, 53921102, 107842204, 134802755, 215684408, 269605510, 431368816, 539211020, 1078422040, 2156844080]

約数ペア:

[(1, 2156844080), (2, 1078422040), (4, 539211020), (5, 431368816), (8, 269605510), (10, 215684408), (16, 134802755), (20, 107842204), (40, 53921102), (80, 26960551)]