66978335

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1\times {\mathrm{349}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 81496800

約数和(自身を除く): 14518465

約数列:

[1, 5, 131, 293, 349, 655, 1465, 1745, 38383, 45719, 102257, 191915, 228595, 511285, 13395667, 66978335]

約数ペア:

[(1, 66978335), (5, 13395667), (131, 511285), (293, 228595), (349, 191915), (655, 102257), (1465, 45719), (1745, 38383)]