12978000

素因数分解:

$2^4\times 3^2\times 5^3\times 7^1\times {\mathrm{103}}^1$

素因数の和:139

約数の個数: 240

約数和(自身を含む): 52306176

約数和(自身を除く): 39328176

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 100, 103, 105, 112, 120, 125, 126, 140, 144, 150, 168, 175, 180, 200, 206, 210, 225, 240, 250, 252, 280, 300, 309, 315, 336, 350, 360, 375, 400, 412, 420, 450, 500, 504, 515, 525, 560, 600, 618, 630, 700, 720, 721, 750, 824, 840, 875, 900, 927, 1000, 1008, 1030, 1050, 1125, 1200, 1236, 1260, 1400, 1442, 1500, 1545, 1575, 1648, 1680, 1750, 1800, 1854, 2000, 2060, 2100, 2163, 2250, 2472, 2520, 2575, 2625, 2800, 2884, 3000, 3090, 3150, 3500, 3600, 3605, 3708, 4120, 4200, 4326, 4500, 4635, 4944, 5040, 5150, 5250, 5768, 6000, 6180, 6300, 6489, 7000, 7210, 7416, 7725, 7875, 8240, 8400, 8652, 9000, 9270, 10300, 10500, 10815, 11536, 12360, 12600, 12875, 12978, 14000, 14420, 14832, 15450, 15750, 17304, 18000, 18025, 18540, 20600, 21000, 21630, 23175, 24720, 25200, 25750, 25956, 28840, 30900, 31500, 32445, 34608, 36050, 37080, 38625, 41200, 42000, 43260, 46350, 51500, 51912, 54075, 57680, 61800, 63000, 64890, 72100, 74160, 77250, 86520, 90125, 92700, 103000, 103824, 108150, 115875, 123600, 126000, 129780, 144200, 154500, 162225, 173040, 180250, 185400, 206000, 216300, 231750, 259560, 270375, 288400, 309000, 324450, 360500, 370800, 432600, 463500, 519120, 540750, 618000, 648900, 721000, 811125, 865200, 927000, 1081500, 1297800, 1442000, 1622250, 1854000, 2163000, 2595600, 3244500, 4326000, 6489000, 12978000]

約数ペア:

[(1, 12978000), (2, 6489000), (3, 4326000), (4, 3244500), (5, 2595600), (6, 2163000), (7, 1854000), (8, 1622250), (9, 1442000), (10, 1297800), (12, 1081500), (14, 927000), (15, 865200), (16, 811125), (18, 721000), (20, 648900), (21, 618000), (24, 540750), (25, 519120), (28, 463500), (30, 432600), (35, 370800), (36, 360500), (40, 324450), (42, 309000), (45, 288400), (48, 270375), (50, 259560), (56, 231750), (60, 216300), (63, 206000), (70, 185400), (72, 180250), (75, 173040), (80, 162225), (84, 154500), (90, 144200), (100, 129780), (103, 126000), (105, 123600), (112, 115875), (120, 108150), (125, 103824), (126, 103000), (140, 92700), (144, 90125), (150, 86520), (168, 77250), (175, 74160), (180, 72100), (200, 64890), (206, 63000), (210, 61800), (225, 57680), (240, 54075), (250, 51912), (252, 51500), (280, 46350), (300, 43260), (309, 42000), (315, 41200), (336, 38625), (350, 37080), (360, 36050), (375, 34608), (400, 32445), (412, 31500), (420, 30900), (450, 28840), (500, 25956), (504, 25750), (515, 25200), (525, 24720), (560, 23175), (600, 21630), (618, 21000), (630, 20600), (700, 18540), (720, 18025), (721, 18000), (750, 17304), (824, 15750), (840, 15450), (875, 14832), (900, 14420), (927, 14000), (1000, 12978), (1008, 12875), (1030, 12600), (1050, 12360), (1125, 11536), (1200, 10815), (1236, 10500), (1260, 10300), (1400, 9270), (1442, 9000), (1500, 8652), (1545, 8400), (1575, 8240), (1648, 7875), (1680, 7725), (1750, 7416), (1800, 7210), (1854, 7000), (2000, 6489), (2060, 6300), (2100, 6180), (2163, 6000), (2250, 5768), (2472, 5250), (2520, 5150), (2575, 5040), (2625, 4944), (2800, 4635), (2884, 4500), (3000, 4326), (3090, 4200), (3150, 4120), (3500, 3708), (3600, 3605)]