19203140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{457}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 44319744

約数和(自身を除く): 25116604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 457, 764, 914, 955, 1828, 1910, 2101, 2285, 3820, 4202, 4570, 5027, 8404, 9140, 10054, 10505, 20108, 21010, 25135, 42020, 50270, 87287, 100540, 174574, 349148, 436435, 872870, 960157, 1745740, 1920314, 3840628, 4800785, 9601570, 19203140]

約数ペア:

[(1, 19203140), (2, 9601570), (4, 4800785), (5, 3840628), (10, 1920314), (11, 1745740), (20, 960157), (22, 872870), (44, 436435), (55, 349148), (110, 174574), (191, 100540), (220, 87287), (382, 50270), (457, 42020), (764, 25135), (914, 21010), (955, 20108), (1828, 10505), (1910, 10054), (2101, 9140), (2285, 8404), (3820, 5027), (4202, 4570)]