12803920

素因数分解:

$2^4\times 5^1\times {\mathrm{160049}}^1$

素因数の和:160062

約数の個数: 20

約数和(自身を含む): 29769300

約数和(自身を除く): 16965380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 160049, 320098, 640196, 800245, 1280392, 1600490, 2560784, 3200980, 6401960, 12803920]

約数ペア:

[(1, 12803920), (2, 6401960), (4, 3200980), (5, 2560784), (8, 1600490), (10, 1280392), (16, 800245), (20, 640196), (40, 320098), (80, 160049)]