638852428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{941}}^1\times {\mathrm{8933}}^1$

素因数の和:9897

約数の個数: 24

約数和(自身を含む): 1178215920

約数和(自身を除く): 539363492

約数列:

[1, 2, 4, 19, 38, 76, 941, 1882, 3764, 8933, 17866, 17879, 35732, 35758, 71516, 169727, 339454, 678908, 8405953, 16811906, 33623812, 159713107, 319426214, 638852428]

約数ペア:

[(1, 638852428), (2, 319426214), (4, 159713107), (19, 33623812), (38, 16811906), (76, 8405953), (941, 678908), (1882, 339454), (3764, 169727), (8933, 71516), (17866, 35758), (17879, 35732)]