18920140

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{12959}}^1$

素因数の和:13041

約数の個数: 24

約数和(自身を含む): 40279680

約数和(自身を除く): 21359540

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 12959, 25918, 51836, 64795, 129590, 259180, 946007, 1892014, 3784028, 4730035, 9460070, 18920140]

約数ペア:

[(1, 18920140), (2, 9460070), (4, 4730035), (5, 3784028), (10, 1892014), (20, 946007), (73, 259180), (146, 129590), (292, 64795), (365, 51836), (730, 25918), (1460, 12959)]