19755640

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1783}}^1$

素因数の和:2071

約数の個数: 32

約数和(自身を含む): 44635680

約数和(自身を除く): 24880040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 1783, 2216, 2770, 3566, 5540, 7132, 8915, 11080, 14264, 17830, 35660, 71320, 493891, 987782, 1975564, 2469455, 3951128, 4938910, 9877820, 19755640]

約数ペア:

[(1, 19755640), (2, 9877820), (4, 4938910), (5, 3951128), (8, 2469455), (10, 1975564), (20, 987782), (40, 493891), (277, 71320), (554, 35660), (1108, 17830), (1385, 14264), (1783, 11080), (2216, 8915), (2770, 7132), (3566, 5540)]