640091312

素因数分解:

$2^4\times 7^2\times {\mathrm{816443}}^1$

素因数の和:816465

約数の個数: 30

約数和(自身を含む): 1442656548

約数和(自身を除く): 802565236

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 816443, 1632886, 3265772, 5715101, 6531544, 11430202, 13063088, 22860404, 40005707, 45720808, 80011414, 91441616, 160022828, 320045656, 640091312]

約数ペア:

[(1, 640091312), (2, 320045656), (4, 160022828), (7, 91441616), (8, 80011414), (14, 45720808), (16, 40005707), (28, 22860404), (49, 13063088), (56, 11430202), (98, 6531544), (112, 5715101), (196, 3265772), (392, 1632886), (784, 816443)]