19203920

素因数分解:

$2^4\times 5^1\times {\mathrm{240049}}^1$

素因数の和:240062

約数の個数: 20

約数和(自身を含む): 44649300

約数和(自身を除く): 25445380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240049, 480098, 960196, 1200245, 1920392, 2400490, 3840784, 4800980, 9601960, 19203920]

約数ペア:

[(1, 19203920), (2, 9601960), (4, 4800980), (5, 3840784), (8, 2400490), (10, 1920392), (16, 1200245), (20, 960196), (40, 480098), (80, 240049)]