209720155

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1\times {\mathrm{1753}}^1$

素因数の和:2166

約数の個数: 16

約数和(自身を含む): 256112064

約数和(自身を除く): 46391909

約数列:

[1, 5, 71, 337, 355, 1685, 1753, 8765, 23927, 119635, 124463, 590761, 622315, 2953805, 41944031, 209720155]

約数ペア:

[(1, 209720155), (5, 41944031), (71, 2953805), (337, 622315), (355, 590761), (1685, 124463), (1753, 119635), (8765, 23927)]