2198900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1999}}^1$

素因数の和:2024

約数の個数: 36

約数和(自身を含む): 5208000

約数和(自身を除く): 3009100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 1999, 3998, 7996, 9995, 19990, 21989, 39980, 43978, 49975, 87956, 99950, 109945, 199900, 219890, 439780, 549725, 1099450, 2198900]

約数ペア:

[(1, 2198900), (2, 1099450), (4, 549725), (5, 439780), (10, 219890), (11, 199900), (20, 109945), (22, 99950), (25, 87956), (44, 49975), (50, 43978), (55, 39980), (100, 21989), (110, 19990), (220, 9995), (275, 7996), (550, 3998), (1100, 1999)]