128439555

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{62501}}^1$

素因数の和:62646

約数の個数: 16

約数和(自身を含む): 207006624

約数和(自身を除く): 78567069

約数列:

[1, 3, 5, 15, 137, 411, 685, 2055, 62501, 187503, 312505, 937515, 8562637, 25687911, 42813185, 128439555]

約数ペア:

[(1, 128439555), (3, 42813185), (5, 25687911), (15, 8562637), (137, 937515), (411, 312505), (685, 187503), (2055, 62501)]