20888961280

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{7687}}^1$

素因数の和:7912

約数の個数: 144

約数和(自身を含む): 54874237824

約数和(自身を除く): 33985276544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 193, 220, 256, 320, 352, 386, 440, 640, 704, 772, 880, 965, 1280, 1408, 1544, 1760, 1930, 2123, 2816, 3088, 3520, 3860, 4246, 6176, 7040, 7687, 7720, 8492, 10615, 12352, 14080, 15374, 15440, 16984, 21230, 24704, 30748, 30880, 33968, 38435, 42460, 49408, 61496, 61760, 67936, 76870, 84557, 84920, 122992, 123520, 135872, 153740, 169114, 169840, 245984, 247040, 271744, 307480, 338228, 339680, 422785, 491968, 543488, 614960, 676456, 679360, 845570, 983936, 1229920, 1352912, 1358720, 1483591, 1691140, 1967872, 2459840, 2705824, 2717440, 2967182, 3382280, 4919680, 5411648, 5934364, 6764560, 7417955, 9839360, 10823296, 11868728, 13529120, 14835910, 16319501, 21646592, 23737456, 27058240, 29671820, 32639002, 47474912, 54116480, 59343640, 65278004, 81597505, 94949824, 108232960, 118687280, 130556008, 163195010, 189899648, 237374560, 261112016, 326390020, 379799296, 474749120, 522224032, 652780040, 949498240, 1044448064, 1305560080, 1898996480, 2088896128, 2611120160, 4177792256, 5222240320, 10444480640, 20888961280]

約数ペア:

[(1, 20888961280), (2, 10444480640), (4, 5222240320), (5, 4177792256), (8, 2611120160), (10, 2088896128), (11, 1898996480), (16, 1305560080), (20, 1044448064), (22, 949498240), (32, 652780040), (40, 522224032), (44, 474749120), (55, 379799296), (64, 326390020), (80, 261112016), (88, 237374560), (110, 189899648), (128, 163195010), (160, 130556008), (176, 118687280), (193, 108232960), (220, 94949824), (256, 81597505), (320, 65278004), (352, 59343640), (386, 54116480), (440, 47474912), (640, 32639002), (704, 29671820), (772, 27058240), (880, 23737456), (965, 21646592), (1280, 16319501), (1408, 14835910), (1544, 13529120), (1760, 11868728), (1930, 10823296), (2123, 9839360), (2816, 7417955), (3088, 6764560), (3520, 5934364), (3860, 5411648), (4246, 4919680), (6176, 3382280), (7040, 2967182), (7687, 2717440), (7720, 2705824), (8492, 2459840), (10615, 1967872), (12352, 1691140), (14080, 1483591), (15374, 1358720), (15440, 1352912), (16984, 1229920), (21230, 983936), (24704, 845570), (30748, 679360), (30880, 676456), (33968, 614960), (38435, 543488), (42460, 491968), (49408, 422785), (61496, 339680), (61760, 338228), (67936, 307480), (76870, 271744), (84557, 247040), (84920, 245984), (122992, 169840), (123520, 169114), (135872, 153740)]