20490170

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107843}}^1$

素因数の和:107869

約数の個数: 16

約数和(自身を含む): 38823840

約数和(自身を除く): 18333670

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 107843, 215686, 539215, 1078430, 2049017, 4098034, 10245085, 20490170]

約数ペア:

[(1, 20490170), (2, 10245085), (5, 4098034), (10, 2049017), (19, 1078430), (38, 539215), (95, 215686), (190, 107843)]