56128840

素因数分解:

$2^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1783}}^1$

素因数の和:2581

約数の個数: 32

約数和(自身を含む): 126521280

約数和(自身を除く): 70392440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 787, 1574, 1783, 3148, 3566, 3935, 6296, 7132, 7870, 8915, 14264, 15740, 17830, 31480, 35660, 71320, 1403221, 2806442, 5612884, 7016105, 11225768, 14032210, 28064420, 56128840]

約数ペア:

[(1, 56128840), (2, 28064420), (4, 14032210), (5, 11225768), (8, 7016105), (10, 5612884), (20, 2806442), (40, 1403221), (787, 71320), (1574, 35660), (1783, 31480), (3148, 17830), (3566, 15740), (3935, 14264), (6296, 8915), (7132, 7870)]