639847568

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{930011}}^1$

素因数の和:930062

約数の個数: 20

約数和(自身を含む): 1268536368

約数和(自身を除く): 628688800

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 930011, 1860022, 3720044, 7440088, 14880176, 39990473, 79980946, 159961892, 319923784, 639847568]

約数ペア:

[(1, 639847568), (2, 319923784), (4, 159961892), (8, 79980946), (16, 39990473), (43, 14880176), (86, 7440088), (172, 3720044), (344, 1860022), (688, 930011)]