81960000

素因数分解:

$2^6\times 3^1\times 5^4\times {\mathrm{683}}^1$

素因数の和:718

約数の個数: 140

約数和(自身を含む): 271375632

約数和(自身を除く): 189415632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 150, 160, 192, 200, 240, 250, 300, 320, 375, 400, 480, 500, 600, 625, 683, 750, 800, 960, 1000, 1200, 1250, 1366, 1500, 1600, 1875, 2000, 2049, 2400, 2500, 2732, 3000, 3415, 3750, 4000, 4098, 4800, 5000, 5464, 6000, 6830, 7500, 8000, 8196, 10000, 10245, 10928, 12000, 13660, 15000, 16392, 17075, 20000, 20490, 21856, 24000, 27320, 30000, 32784, 34150, 40000, 40980, 43712, 51225, 54640, 60000, 65568, 68300, 81960, 85375, 102450, 109280, 120000, 131136, 136600, 163920, 170750, 204900, 218560, 256125, 273200, 327840, 341500, 409800, 426875, 512250, 546400, 655680, 683000, 819600, 853750, 1024500, 1092800, 1280625, 1366000, 1639200, 1707500, 2049000, 2561250, 2732000, 3278400, 3415000, 4098000, 5122500, 5464000, 6830000, 8196000, 10245000, 13660000, 16392000, 20490000, 27320000, 40980000, 81960000]

約数ペア:

[(1, 81960000), (2, 40980000), (3, 27320000), (4, 20490000), (5, 16392000), (6, 13660000), (8, 10245000), (10, 8196000), (12, 6830000), (15, 5464000), (16, 5122500), (20, 4098000), (24, 3415000), (25, 3278400), (30, 2732000), (32, 2561250), (40, 2049000), (48, 1707500), (50, 1639200), (60, 1366000), (64, 1280625), (75, 1092800), (80, 1024500), (96, 853750), (100, 819600), (120, 683000), (125, 655680), (150, 546400), (160, 512250), (192, 426875), (200, 409800), (240, 341500), (250, 327840), (300, 273200), (320, 256125), (375, 218560), (400, 204900), (480, 170750), (500, 163920), (600, 136600), (625, 131136), (683, 120000), (750, 109280), (800, 102450), (960, 85375), (1000, 81960), (1200, 68300), (1250, 65568), (1366, 60000), (1500, 54640), (1600, 51225), (1875, 43712), (2000, 40980), (2049, 40000), (2400, 34150), (2500, 32784), (2732, 30000), (3000, 27320), (3415, 24000), (3750, 21856), (4000, 20490), (4098, 20000), (4800, 17075), (5000, 16392), (5464, 15000), (6000, 13660), (6830, 12000), (7500, 10928), (8000, 10245), (8196, 10000)]