20490000

素因数分解:

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

素因数の和:714

約数の個数: 100

約数和(自身を含む): 66241296

約数和(自身を除く): 45751296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 125, 150, 200, 240, 250, 300, 375, 400, 500, 600, 625, 683, 750, 1000, 1200, 1250, 1366, 1500, 1875, 2000, 2049, 2500, 2732, 3000, 3415, 3750, 4098, 5000, 5464, 6000, 6830, 7500, 8196, 10000, 10245, 10928, 13660, 15000, 16392, 17075, 20490, 27320, 30000, 32784, 34150, 40980, 51225, 54640, 68300, 81960, 85375, 102450, 136600, 163920, 170750, 204900, 256125, 273200, 341500, 409800, 426875, 512250, 683000, 819600, 853750, 1024500, 1280625, 1366000, 1707500, 2049000, 2561250, 3415000, 4098000, 5122500, 6830000, 10245000, 20490000]

約数ペア:

[(1, 20490000), (2, 10245000), (3, 6830000), (4, 5122500), (5, 4098000), (6, 3415000), (8, 2561250), (10, 2049000), (12, 1707500), (15, 1366000), (16, 1280625), (20, 1024500), (24, 853750), (25, 819600), (30, 683000), (40, 512250), (48, 426875), (50, 409800), (60, 341500), (75, 273200), (80, 256125), (100, 204900), (120, 170750), (125, 163920), (150, 136600), (200, 102450), (240, 85375), (250, 81960), (300, 68300), (375, 54640), (400, 51225), (500, 40980), (600, 34150), (625, 32784), (683, 30000), (750, 27320), (1000, 20490), (1200, 17075), (1250, 16392), (1366, 15000), (1500, 13660), (1875, 10928), (2000, 10245), (2049, 10000), (2500, 8196), (2732, 7500), (3000, 6830), (3415, 6000), (3750, 5464), (4098, 5000)]