81891684

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 251596800

約数和(自身を除く): 169705116

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 71, 84, 92, 126, 138, 142, 161, 199, 207, 213, 252, 276, 284, 322, 398, 414, 426, 483, 497, 597, 639, 644, 796, 828, 852, 966, 994, 1194, 1278, 1393, 1449, 1491, 1633, 1791, 1932, 1988, 2388, 2556, 2786, 2898, 2982, 3266, 3582, 4179, 4473, 4577, 4899, 5572, 5796, 5964, 6532, 7164, 8358, 8946, 9154, 9798, 11431, 12537, 13731, 14129, 14697, 16716, 17892, 18308, 19596, 22862, 25074, 27462, 28258, 29394, 32039, 34293, 41193, 42387, 45724, 50148, 54924, 56516, 58788, 64078, 68586, 82386, 84774, 96117, 98903, 102879, 127161, 128156, 137172, 164772, 169548, 192234, 197806, 205758, 254322, 288351, 296709, 324967, 384468, 395612, 411516, 508644, 576702, 593418, 649934, 890127, 974901, 1153404, 1186836, 1299868, 1780254, 1949802, 2274769, 2924703, 3560508, 3899604, 4549538, 5849406, 6824307, 9099076, 11698812, 13648614, 20472921, 27297228, 40945842, 81891684]

約数ペア:

[(1, 81891684), (2, 40945842), (3, 27297228), (4, 20472921), (6, 13648614), (7, 11698812), (9, 9099076), (12, 6824307), (14, 5849406), (18, 4549538), (21, 3899604), (23, 3560508), (28, 2924703), (36, 2274769), (42, 1949802), (46, 1780254), (63, 1299868), (69, 1186836), (71, 1153404), (84, 974901), (92, 890127), (126, 649934), (138, 593418), (142, 576702), (161, 508644), (199, 411516), (207, 395612), (213, 384468), (252, 324967), (276, 296709), (284, 288351), (322, 254322), (398, 205758), (414, 197806), (426, 192234), (483, 169548), (497, 164772), (597, 137172), (639, 128156), (644, 127161), (796, 102879), (828, 98903), (852, 96117), (966, 84774), (994, 82386), (1194, 68586), (1278, 64078), (1393, 58788), (1449, 56516), (1491, 54924), (1633, 50148), (1791, 45724), (1932, 42387), (1988, 41193), (2388, 34293), (2556, 32039), (2786, 29394), (2898, 28258), (2982, 27462), (3266, 25074), (3582, 22862), (4179, 19596), (4473, 18308), (4577, 17892), (4899, 16716), (5572, 14697), (5796, 14129), (5964, 13731), (6532, 12537), (7164, 11431), (8358, 9798), (8946, 9154)]