68505520

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1933}}^1$

素因数の和:2389

約数の個数: 40

約数和(自身を含む): 159717456

約数和(自身を除く): 91211936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 886, 1772, 1933, 2215, 3544, 3866, 4430, 7088, 7732, 8860, 9665, 15464, 17720, 19330, 30928, 35440, 38660, 77320, 154640, 856319, 1712638, 3425276, 4281595, 6850552, 8563190, 13701104, 17126380, 34252760, 68505520]

約数ペア:

[(1, 68505520), (2, 34252760), (4, 17126380), (5, 13701104), (8, 8563190), (10, 6850552), (16, 4281595), (20, 3425276), (40, 1712638), (80, 856319), (443, 154640), (886, 77320), (1772, 38660), (1933, 35440), (2215, 30928), (3544, 19330), (3866, 17720), (4430, 15464), (7088, 9665), (7732, 8860)]