12657890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{857}}^1$

素因数の和:1082

約数の個数: 32

約数和(自身を含む): 26193024

約数和(自身を除く): 13535134

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 857, 1055, 1477, 1714, 2110, 2954, 4285, 5999, 7385, 8570, 11998, 14770, 29995, 59990, 180827, 361654, 904135, 1265789, 1808270, 2531578, 6328945, 12657890]

約数ペア:

[(1, 12657890), (2, 6328945), (5, 2531578), (7, 1808270), (10, 1265789), (14, 904135), (35, 361654), (70, 180827), (211, 59990), (422, 29995), (857, 14770), (1055, 11998), (1477, 8570), (1714, 7385), (2110, 5999), (2954, 4285)]