208090810

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{190909}}^1$

素因数の和:191025

約数の個数: 16

約数和(自身を含む): 378001800

約数和(自身を除く): 169910990

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 190909, 381818, 954545, 1909090, 20809081, 41618162, 104045405, 208090810]

約数ペア:

[(1, 208090810), (2, 104045405), (5, 41618162), (10, 20809081), (109, 1909090), (218, 954545), (545, 381818), (1090, 190909)]