56487280

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6991}}^1$

素因数の和:7105

約数の個数: 40

約数和(自身を含む): 132652224

約数和(自身を除く): 76164944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 6991, 8080, 13982, 27964, 34955, 55928, 69910, 111856, 139820, 279640, 559280, 706091, 1412182, 2824364, 3530455, 5648728, 7060910, 11297456, 14121820, 28243640, 56487280]

約数ペア:

[(1, 56487280), (2, 28243640), (4, 14121820), (5, 11297456), (8, 7060910), (10, 5648728), (16, 3530455), (20, 2824364), (40, 1412182), (80, 706091), (101, 559280), (202, 279640), (404, 139820), (505, 111856), (808, 69910), (1010, 55928), (1616, 34955), (2020, 27964), (4040, 13982), (6991, 8080)]