64008680

素因数分解:

$2^3\times 5^1\times {\mathrm{1600217}}^1$

素因数の和:1600228

約数の個数: 16

約数和(自身を含む): 144019620

約数和(自身を除く): 80010940

約数列:

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

約数ペア:

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