219655930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1689661}}^1$

素因数の和:1689681

約数の個数: 16

約数和(自身を含む): 425794824

約数和(自身を除く): 206138894

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1689661, 3379322, 8448305, 16896610, 21965593, 43931186, 109827965, 219655930]

約数ペア:

[(1, 219655930), (2, 109827965), (5, 43931186), (10, 21965593), (13, 16896610), (26, 8448305), (65, 3379322), (130, 1689661)]