20199446380

素因数分解:

$2^2\times 5^1\times {\mathrm{1009972319}}^1$

素因数の和:1009972328

約数の個数: 12

約数和(自身を含む): 42418837440

約数和(自身を除く): 22219391060

約数列:

[1, 2, 4, 5, 10, 20, 1009972319, 2019944638, 4039889276, 5049861595, 10099723190, 20199446380]

約数ペア:

[(1, 20199446380), (2, 10099723190), (4, 5049861595), (5, 4039889276), (10, 2019944638), (20, 1009972319)]