19567540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10993}}^1$

素因数の和:11091

約数の個数: 24

約数和(自身を含む): 41557320

約数和(自身を除く): 21989780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10993, 21986, 43972, 54965, 109930, 219860, 978377, 1956754, 3913508, 4891885, 9783770, 19567540]

約数ペア:

[(1, 19567540), (2, 9783770), (4, 4891885), (5, 3913508), (10, 1956754), (20, 978377), (89, 219860), (178, 109930), (356, 54965), (445, 43972), (890, 21986), (1780, 10993)]