20168517886

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:431

約数の個数: 128

約数和(自身を含む): 37010856960

約数和(自身を除く): 16842339074

約数列:

[1, 2, 11, 22, 23, 29, 37, 46, 58, 74, 121, 242, 253, 307, 319, 407, 506, 614, 638, 667, 814, 851, 1073, 1331, 1334, 1702, 2146, 2662, 2783, 3377, 3509, 4477, 5566, 6754, 7018, 7061, 7337, 8903, 8954, 9361, 11359, 11803, 14122, 14674, 17806, 18722, 22718, 23606, 24679, 30613, 37147, 38599, 49247, 49358, 61226, 74294, 77198, 77671, 80707, 97933, 98494, 102971, 124949, 129833, 155342, 161414, 195866, 204769, 205942, 249898, 259666, 261257, 271469, 329411, 408617, 409538, 522514, 542938, 658822, 817234, 854381, 887777, 1077263, 1132681, 1374439, 1428163, 1708762, 1775554, 2154526, 2252459, 2265362, 2748878, 2856326, 2873827, 2986159, 3623521, 4504918, 5747654, 5972318, 7247042, 7576453, 9398191, 11849893, 15118829, 15152906, 18796382, 23699786, 24777049, 30237658, 31612097, 32847749, 39858731, 49554098, 63224194, 65695498, 79717462, 83340983, 166681966, 272547539, 347733067, 438446041, 545095078, 695466134, 876892082, 916750813, 1833501626, 10084258943, 20168517886]

約数ペア:

[(1, 20168517886), (2, 10084258943), (11, 1833501626), (22, 916750813), (23, 876892082), (29, 695466134), (37, 545095078), (46, 438446041), (58, 347733067), (74, 272547539), (121, 166681966), (242, 83340983), (253, 79717462), (307, 65695498), (319, 63224194), (407, 49554098), (506, 39858731), (614, 32847749), (638, 31612097), (667, 30237658), (814, 24777049), (851, 23699786), (1073, 18796382), (1331, 15152906), (1334, 15118829), (1702, 11849893), (2146, 9398191), (2662, 7576453), (2783, 7247042), (3377, 5972318), (3509, 5747654), (4477, 4504918), (5566, 3623521), (6754, 2986159), (7018, 2873827), (7061, 2856326), (7337, 2748878), (8903, 2265362), (8954, 2252459), (9361, 2154526), (11359, 1775554), (11803, 1708762), (14122, 1428163), (14674, 1374439), (17806, 1132681), (18722, 1077263), (22718, 887777), (23606, 854381), (24679, 817234), (30613, 658822), (37147, 542938), (38599, 522514), (49247, 409538), (49358, 408617), (61226, 329411), (74294, 271469), (77198, 261257), (77671, 259666), (80707, 249898), (97933, 205942), (98494, 204769), (102971, 195866), (124949, 161414), (129833, 155342)]