19928800

素因数分解:

$2^5\times 5^2\times {\mathrm{29}}^1\times {\mathrm{859}}^1$

素因数の和:908

約数の個数: 72

約数和(自身を含む): 50387400

約数和(自身を除く): 30458600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 80, 100, 116, 145, 160, 200, 232, 290, 400, 464, 580, 725, 800, 859, 928, 1160, 1450, 1718, 2320, 2900, 3436, 4295, 4640, 5800, 6872, 8590, 11600, 13744, 17180, 21475, 23200, 24911, 27488, 34360, 42950, 49822, 68720, 85900, 99644, 124555, 137440, 171800, 199288, 249110, 343600, 398576, 498220, 622775, 687200, 797152, 996440, 1245550, 1992880, 2491100, 3985760, 4982200, 9964400, 19928800]

約数ペア:

[(1, 19928800), (2, 9964400), (4, 4982200), (5, 3985760), (8, 2491100), (10, 1992880), (16, 1245550), (20, 996440), (25, 797152), (29, 687200), (32, 622775), (40, 498220), (50, 398576), (58, 343600), (80, 249110), (100, 199288), (116, 171800), (145, 137440), (160, 124555), (200, 99644), (232, 85900), (290, 68720), (400, 49822), (464, 42950), (580, 34360), (725, 27488), (800, 24911), (859, 23200), (928, 21475), (1160, 17180), (1450, 13744), (1718, 11600), (2320, 8590), (2900, 6872), (3436, 5800), (4295, 4640)]