2149804820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{986149}}^1$

素因数の和:986267

約数の個数: 24

約数和(自身を含む): 4556013000

約数和(自身を除く): 2406208180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 986149, 1972298, 3944596, 4930745, 9861490, 19722980, 107490241, 214980482, 429960964, 537451205, 1074902410, 2149804820]

約数ペア:

[(1, 2149804820), (2, 1074902410), (4, 537451205), (5, 429960964), (10, 214980482), (20, 107490241), (109, 19722980), (218, 9861490), (436, 4930745), (545, 3944596), (1090, 1972298), (2180, 986149)]