2180090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19819}}^1$

素因数の和:19837

約数の個数: 16

約数和(自身を含む): 4281120

約数和(自身を除く): 2101030

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 19819, 39638, 99095, 198190, 218009, 436018, 1090045, 2180090]

約数ペア:

[(1, 2180090), (2, 1090045), (5, 436018), (10, 218009), (11, 198190), (22, 99095), (55, 39638), (110, 19819)]