80206420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{572903}}^1$

素因数の和:572919

約数の個数: 24

約数和(自身を含む): 192495744

約数和(自身を除く): 112289324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 572903, 1145806, 2291612, 2864515, 4010321, 5729030, 8020642, 11458060, 16041284, 20051605, 40103210, 80206420]

約数ペア:

[(1, 80206420), (2, 40103210), (4, 20051605), (5, 16041284), (7, 11458060), (10, 8020642), (14, 5729030), (20, 4010321), (28, 2864515), (35, 2291612), (70, 1145806), (140, 572903)]