51661520

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1471}}^1$

素因数の和:1923

約数の個数: 40

約数和(自身を含む): 120468480

約数和(自身を除く): 68806960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1471, 1756, 2195, 2942, 3512, 4390, 5884, 7024, 7355, 8780, 11768, 14710, 17560, 23536, 29420, 35120, 58840, 117680, 645769, 1291538, 2583076, 3228845, 5166152, 6457690, 10332304, 12915380, 25830760, 51661520]

約数ペア:

[(1, 51661520), (2, 25830760), (4, 12915380), (5, 10332304), (8, 6457690), (10, 5166152), (16, 3228845), (20, 2583076), (40, 1291538), (80, 645769), (439, 117680), (878, 58840), (1471, 35120), (1756, 29420), (2195, 23536), (2942, 17560), (3512, 14710), (4390, 11768), (5884, 8780), (7024, 7355)]