81399864

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:150

約数の個数: 192

約数和(自身を含む): 261411840

約数和(自身を除く): 180011976

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 47, 52, 56, 61, 78, 84, 91, 94, 104, 122, 141, 156, 168, 169, 182, 183, 188, 244, 273, 282, 312, 329, 338, 364, 366, 376, 427, 488, 507, 546, 564, 611, 658, 676, 728, 732, 793, 854, 987, 1014, 1092, 1128, 1183, 1222, 1281, 1316, 1352, 1464, 1586, 1708, 1833, 1974, 2028, 2184, 2366, 2379, 2444, 2562, 2632, 2867, 3172, 3416, 3549, 3666, 3948, 4056, 4277, 4732, 4758, 4888, 5124, 5551, 5734, 6344, 7098, 7332, 7896, 7943, 8554, 8601, 9464, 9516, 10248, 10309, 11102, 11468, 12831, 14196, 14664, 15886, 16653, 17108, 17202, 19032, 20069, 20618, 22204, 22936, 23829, 25662, 28392, 30927, 31772, 33306, 34216, 34404, 37271, 40138, 41236, 44408, 47658, 51324, 55601, 60207, 61854, 63544, 66612, 68808, 72163, 74542, 80276, 82472, 95316, 102648, 111202, 111813, 120414, 123708, 133224, 144326, 149084, 160552, 166803, 190632, 216489, 222404, 223626, 240828, 247416, 260897, 288652, 298168, 333606, 432978, 444808, 447252, 481656, 484523, 521794, 577304, 667212, 782691, 865956, 894504, 969046, 1043588, 1334424, 1453569, 1565382, 1731912, 1938092, 2087176, 2907138, 3130764, 3391661, 3876184, 5814276, 6261528, 6783322, 10174983, 11628552, 13566644, 20349966, 27133288, 40699932, 81399864]

約数ペア:

[(1, 81399864), (2, 40699932), (3, 27133288), (4, 20349966), (6, 13566644), (7, 11628552), (8, 10174983), (12, 6783322), (13, 6261528), (14, 5814276), (21, 3876184), (24, 3391661), (26, 3130764), (28, 2907138), (39, 2087176), (42, 1938092), (47, 1731912), (52, 1565382), (56, 1453569), (61, 1334424), (78, 1043588), (84, 969046), (91, 894504), (94, 865956), (104, 782691), (122, 667212), (141, 577304), (156, 521794), (168, 484523), (169, 481656), (182, 447252), (183, 444808), (188, 432978), (244, 333606), (273, 298168), (282, 288652), (312, 260897), (329, 247416), (338, 240828), (364, 223626), (366, 222404), (376, 216489), (427, 190632), (488, 166803), (507, 160552), (546, 149084), (564, 144326), (611, 133224), (658, 123708), (676, 120414), (728, 111813), (732, 111202), (793, 102648), (854, 95316), (987, 82472), (1014, 80276), (1092, 74542), (1128, 72163), (1183, 68808), (1222, 66612), (1281, 63544), (1316, 61854), (1352, 60207), (1464, 55601), (1586, 51324), (1708, 47658), (1833, 44408), (1974, 41236), (2028, 40138), (2184, 37271), (2366, 34404), (2379, 34216), (2444, 33306), (2562, 31772), (2632, 30927), (2867, 28392), (3172, 25662), (3416, 23829), (3549, 22936), (3666, 22204), (3948, 20618), (4056, 20069), (4277, 19032), (4732, 17202), (4758, 17108), (4888, 16653), (5124, 15886), (5551, 14664), (5734, 14196), (6344, 12831), (7098, 11468), (7332, 11102), (7896, 10309), (7943, 10248), (8554, 9516), (8601, 9464)]