21128800

素因数分解:

$2^5\times 5^2\times 7^4\times {\mathrm{11}}^1$

素因数の和:59

約数の個数: 180

約数和(自身を含む): 65644236

約数和(自身を除く): 44515436

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 32, 35, 40, 44, 49, 50, 55, 56, 70, 77, 80, 88, 98, 100, 110, 112, 140, 154, 160, 175, 176, 196, 200, 220, 224, 245, 275, 280, 308, 343, 350, 352, 385, 392, 400, 440, 490, 539, 550, 560, 616, 686, 700, 770, 784, 800, 880, 980, 1078, 1100, 1120, 1225, 1232, 1372, 1400, 1540, 1568, 1715, 1760, 1925, 1960, 2156, 2200, 2401, 2450, 2464, 2695, 2744, 2800, 3080, 3430, 3773, 3850, 3920, 4312, 4400, 4802, 4900, 5390, 5488, 5600, 6160, 6860, 7546, 7700, 7840, 8575, 8624, 8800, 9604, 9800, 10780, 10976, 12005, 12320, 13475, 13720, 15092, 15400, 17150, 17248, 18865, 19208, 19600, 21560, 24010, 26411, 26950, 27440, 30184, 30800, 34300, 37730, 38416, 39200, 43120, 48020, 52822, 53900, 54880, 60025, 60368, 61600, 68600, 75460, 76832, 86240, 94325, 96040, 105644, 107800, 120050, 120736, 132055, 137200, 150920, 188650, 192080, 211288, 215600, 240100, 264110, 274400, 301840, 377300, 384160, 422576, 431200, 480200, 528220, 603680, 660275, 754600, 845152, 960400, 1056440, 1320550, 1509200, 1920800, 2112880, 2641100, 3018400, 4225760, 5282200, 10564400, 21128800]

約数ペア:

[(1, 21128800), (2, 10564400), (4, 5282200), (5, 4225760), (7, 3018400), (8, 2641100), (10, 2112880), (11, 1920800), (14, 1509200), (16, 1320550), (20, 1056440), (22, 960400), (25, 845152), (28, 754600), (32, 660275), (35, 603680), (40, 528220), (44, 480200), (49, 431200), (50, 422576), (55, 384160), (56, 377300), (70, 301840), (77, 274400), (80, 264110), (88, 240100), (98, 215600), (100, 211288), (110, 192080), (112, 188650), (140, 150920), (154, 137200), (160, 132055), (175, 120736), (176, 120050), (196, 107800), (200, 105644), (220, 96040), (224, 94325), (245, 86240), (275, 76832), (280, 75460), (308, 68600), (343, 61600), (350, 60368), (352, 60025), (385, 54880), (392, 53900), (400, 52822), (440, 48020), (490, 43120), (539, 39200), (550, 38416), (560, 37730), (616, 34300), (686, 30800), (700, 30184), (770, 27440), (784, 26950), (800, 26411), (880, 24010), (980, 21560), (1078, 19600), (1100, 19208), (1120, 18865), (1225, 17248), (1232, 17150), (1372, 15400), (1400, 15092), (1540, 13720), (1568, 13475), (1715, 12320), (1760, 12005), (1925, 10976), (1960, 10780), (2156, 9800), (2200, 9604), (2401, 8800), (2450, 8624), (2464, 8575), (2695, 7840), (2744, 7700), (2800, 7546), (3080, 6860), (3430, 6160), (3773, 5600), (3850, 5488), (3920, 5390), (4312, 4900), (4400, 4802)]