684628

素因数分解:

$2^2\times 7^3\times {\mathrm{499}}^1$

素因数の和:524

約数の個数: 24

約数和(自身を含む): 1400000

約数和(自身を除く): 715372

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 499, 686, 998, 1372, 1996, 3493, 6986, 13972, 24451, 48902, 97804, 171157, 342314, 684628]

約数ペア:

[(1, 684628), (2, 342314), (4, 171157), (7, 97804), (14, 48902), (28, 24451), (49, 13972), (98, 6986), (196, 3493), (343, 1996), (499, 1372), (686, 998)]