66181520

素因数分解:

$2^4\times 5^1\times {\mathrm{827269}}^1$

素因数の和:827282

約数の個数: 20

約数和(自身を含む): 153872220

約数和(自身を除く): 87690700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 827269, 1654538, 3309076, 4136345, 6618152, 8272690, 13236304, 16545380, 33090760, 66181520]

約数ペア:

[(1, 66181520), (2, 33090760), (4, 16545380), (5, 13236304), (8, 8272690), (10, 6618152), (16, 4136345), (20, 3309076), (40, 1654538), (80, 827269)]