80636120

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28393}}^1$

素因数の和:28475

約数の個数: 32

約数和(自身を含む): 183993120

約数和(自身を除く): 103357000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 28393, 56786, 113572, 141965, 227144, 283930, 567860, 1135720, 2015903, 4031806, 8063612, 10079515, 16127224, 20159030, 40318060, 80636120]

約数ペア:

[(1, 80636120), (2, 40318060), (4, 20159030), (5, 16127224), (8, 10079515), (10, 8063612), (20, 4031806), (40, 2015903), (71, 1135720), (142, 567860), (284, 283930), (355, 227144), (568, 141965), (710, 113572), (1420, 56786), (2840, 28393)]