12785780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 30890496

約数和(自身を除く): 18104716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 271, 337, 542, 674, 1084, 1348, 1355, 1685, 1897, 2359, 2710, 3370, 3794, 4718, 5420, 6740, 7588, 9436, 9485, 11795, 18970, 23590, 37940, 47180, 91327, 182654, 365308, 456635, 639289, 913270, 1278578, 1826540, 2557156, 3196445, 6392890, 12785780]

約数ペア:

[(1, 12785780), (2, 6392890), (4, 3196445), (5, 2557156), (7, 1826540), (10, 1278578), (14, 913270), (20, 639289), (28, 456635), (35, 365308), (70, 182654), (140, 91327), (271, 47180), (337, 37940), (542, 23590), (674, 18970), (1084, 11795), (1348, 9485), (1355, 9436), (1685, 7588), (1897, 6740), (2359, 5420), (2710, 4718), (3370, 3794)]