28015190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{400217}}^1$

素因数の和:400231

約数の個数: 16

約数和(自身を含む): 57631392

約数和(自身を除く): 29616202

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 400217, 800434, 2001085, 2801519, 4002170, 5603038, 14007595, 28015190]

約数ペア:

[(1, 28015190), (2, 14007595), (5, 5603038), (7, 4002170), (10, 2801519), (14, 2001085), (35, 800434), (70, 400217)]