12101920

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1759}}^1$

素因数の和:1817

約数の個数: 48

約数和(自身を含む): 29272320

約数和(自身を除く): 17170400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 1759, 3440, 3518, 6880, 7036, 8795, 14072, 17590, 28144, 35180, 56288, 70360, 75637, 140720, 151274, 281440, 302548, 378185, 605096, 756370, 1210192, 1512740, 2420384, 3025480, 6050960, 12101920]

約数ペア:

[(1, 12101920), (2, 6050960), (4, 3025480), (5, 2420384), (8, 1512740), (10, 1210192), (16, 756370), (20, 605096), (32, 378185), (40, 302548), (43, 281440), (80, 151274), (86, 140720), (160, 75637), (172, 70360), (215, 56288), (344, 35180), (430, 28144), (688, 17590), (860, 14072), (1376, 8795), (1720, 7036), (1759, 6880), (3440, 3518)]