81885585

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{39847}}^1$

素因数の和:39992

約数の個数: 16

約数和(自身を含む): 131976576

約数和(自身を除く): 50090991

約数列:

[1, 3, 5, 15, 137, 411, 685, 2055, 39847, 119541, 199235, 597705, 5459039, 16377117, 27295195, 81885585]

約数ペア:

[(1, 81885585), (3, 27295195), (5, 16377117), (15, 5459039), (137, 597705), (411, 199235), (685, 119541), (2055, 39847)]