12878740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1373}}^1$

素因数の和:1456

約数の個数: 48

約数和(自身を含む): 31393152

約数和(自身を除く): 18514412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1373, 1876, 2345, 2746, 4690, 5492, 6865, 9380, 9611, 13730, 19222, 27460, 38444, 48055, 91991, 96110, 183982, 192220, 367964, 459955, 643937, 919910, 1287874, 1839820, 2575748, 3219685, 6439370, 12878740]

約数ペア:

[(1, 12878740), (2, 6439370), (4, 3219685), (5, 2575748), (7, 1839820), (10, 1287874), (14, 919910), (20, 643937), (28, 459955), (35, 367964), (67, 192220), (70, 183982), (134, 96110), (140, 91991), (268, 48055), (335, 38444), (469, 27460), (670, 19222), (938, 13730), (1340, 9611), (1373, 9380), (1876, 6865), (2345, 5492), (2746, 4690)]