51367720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{9803}}^1$

素因数の和:9945

約数の個数: 32

約数和(自身を含む): 116471520

約数和(自身を除く): 65103800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 9803, 19606, 39212, 49015, 78424, 98030, 196060, 392120, 1284193, 2568386, 5136772, 6420965, 10273544, 12841930, 25683860, 51367720]

約数ペア:

[(1, 51367720), (2, 25683860), (4, 12841930), (5, 10273544), (8, 6420965), (10, 5136772), (20, 2568386), (40, 1284193), (131, 392120), (262, 196060), (524, 98030), (655, 78424), (1048, 49015), (1310, 39212), (2620, 19606), (5240, 9803)]