19847540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{26821}}^1$

素因数の和:26867

約数の個数: 24

約数和(自身を含む): 42807912

約数和(自身を除く): 22960372

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 26821, 53642, 107284, 134105, 268210, 536420, 992377, 1984754, 3969508, 4961885, 9923770, 19847540]

約数ペア:

[(1, 19847540), (2, 9923770), (4, 4961885), (5, 3969508), (10, 1984754), (20, 992377), (37, 536420), (74, 268210), (148, 134105), (185, 107284), (370, 53642), (740, 26821)]