68720000

素因数分解:

$2^7\times 5^4\times {\mathrm{859}}^1$

素因数の和:893

約数の個数: 80

約数和(自身を含む): 171273300

約数和(自身を除く): 102553300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 800, 859, 1000, 1250, 1600, 1718, 2000, 2500, 3200, 3436, 4000, 4295, 5000, 6872, 8000, 8590, 10000, 13744, 16000, 17180, 20000, 21475, 27488, 34360, 40000, 42950, 54976, 68720, 80000, 85900, 107375, 109952, 137440, 171800, 214750, 274880, 343600, 429500, 536875, 549760, 687200, 859000, 1073750, 1374400, 1718000, 2147500, 2748800, 3436000, 4295000, 6872000, 8590000, 13744000, 17180000, 34360000, 68720000]

約数ペア:

[(1, 68720000), (2, 34360000), (4, 17180000), (5, 13744000), (8, 8590000), (10, 6872000), (16, 4295000), (20, 3436000), (25, 2748800), (32, 2147500), (40, 1718000), (50, 1374400), (64, 1073750), (80, 859000), (100, 687200), (125, 549760), (128, 536875), (160, 429500), (200, 343600), (250, 274880), (320, 214750), (400, 171800), (500, 137440), (625, 109952), (640, 107375), (800, 85900), (859, 80000), (1000, 68720), (1250, 54976), (1600, 42950), (1718, 40000), (2000, 34360), (2500, 27488), (3200, 21475), (3436, 20000), (4000, 17180), (4295, 16000), (5000, 13744), (6872, 10000), (8000, 8590)]