26820640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{311}}^1$

素因数の和:351

約数の個数: 144

約数和(自身を含む): 80668224

約数和(自身を除く): 53847584

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 311, 352, 385, 392, 440, 490, 539, 560, 616, 622, 770, 784, 880, 980, 1078, 1120, 1232, 1244, 1540, 1555, 1568, 1760, 1960, 2156, 2177, 2464, 2488, 2695, 3080, 3110, 3421, 3920, 4312, 4354, 4976, 5390, 6160, 6220, 6842, 7840, 8624, 8708, 9952, 10780, 10885, 12320, 12440, 13684, 15239, 17105, 17248, 17416, 21560, 21770, 23947, 24880, 27368, 30478, 34210, 34832, 43120, 43540, 47894, 49760, 54736, 60956, 68420, 69664, 76195, 86240, 87080, 95788, 109472, 119735, 121912, 136840, 152390, 167629, 174160, 191576, 239470, 243824, 273680, 304780, 335258, 348320, 383152, 478940, 487648, 547360, 609560, 670516, 766304, 838145, 957880, 1219120, 1341032, 1676290, 1915760, 2438240, 2682064, 3352580, 3831520, 5364128, 6705160, 13410320, 26820640]

約数ペア:

[(1, 26820640), (2, 13410320), (4, 6705160), (5, 5364128), (7, 3831520), (8, 3352580), (10, 2682064), (11, 2438240), (14, 1915760), (16, 1676290), (20, 1341032), (22, 1219120), (28, 957880), (32, 838145), (35, 766304), (40, 670516), (44, 609560), (49, 547360), (55, 487648), (56, 478940), (70, 383152), (77, 348320), (80, 335258), (88, 304780), (98, 273680), (110, 243824), (112, 239470), (140, 191576), (154, 174160), (160, 167629), (176, 152390), (196, 136840), (220, 121912), (224, 119735), (245, 109472), (280, 95788), (308, 87080), (311, 86240), (352, 76195), (385, 69664), (392, 68420), (440, 60956), (490, 54736), (539, 49760), (560, 47894), (616, 43540), (622, 43120), (770, 34832), (784, 34210), (880, 30478), (980, 27368), (1078, 24880), (1120, 23947), (1232, 21770), (1244, 21560), (1540, 17416), (1555, 17248), (1568, 17105), (1760, 15239), (1960, 13684), (2156, 12440), (2177, 12320), (2464, 10885), (2488, 10780), (2695, 9952), (3080, 8708), (3110, 8624), (3421, 7840), (3920, 6842), (4312, 6220), (4354, 6160), (4976, 5390)]