640724

素因数分解:

$2^2\times 7^3\times {\mathrm{467}}^1$

素因数の和:492

約数の個数: 24

約数和(自身を含む): 1310400

約数和(自身を除く): 669676

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 467, 686, 934, 1372, 1868, 3269, 6538, 13076, 22883, 45766, 91532, 160181, 320362, 640724]

約数ペア:

[(1, 640724), (2, 320362), (4, 160181), (7, 91532), (14, 45766), (28, 22883), (49, 13076), (98, 6538), (196, 3269), (343, 1868), (467, 1372), (686, 934)]