128017360

素因数分解:

$2^4\times 5^1\times {\mathrm{1600217}}^1$

素因数の和:1600230

約数の個数: 20

約数和(自身を含む): 297640548

約数和(自身を除く): 169623188

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1600217, 3200434, 6400868, 8001085, 12801736, 16002170, 25603472, 32004340, 64008680, 128017360]

約数ペア:

[(1, 128017360), (2, 64008680), (4, 32004340), (5, 25603472), (8, 16002170), (10, 12801736), (16, 8001085), (20, 6400868), (40, 3200434), (80, 1600217)]