81575208

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:197

約数の個数: 256

約数和(自身を含む): 282240000

約数和(自身を除く): 200664792

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 18, 19, 22, 24, 26, 27, 33, 36, 38, 39, 44, 52, 54, 57, 66, 72, 76, 78, 88, 99, 104, 108, 114, 117, 132, 139, 143, 152, 156, 171, 198, 209, 216, 228, 234, 247, 264, 278, 286, 297, 312, 342, 351, 396, 417, 418, 429, 456, 468, 494, 513, 556, 572, 594, 627, 684, 702, 741, 792, 834, 836, 858, 936, 988, 1026, 1112, 1144, 1188, 1251, 1254, 1287, 1368, 1404, 1482, 1529, 1668, 1672, 1716, 1807, 1881, 1976, 2052, 2223, 2376, 2502, 2508, 2574, 2641, 2717, 2808, 2964, 3058, 3336, 3432, 3614, 3753, 3762, 3861, 4104, 4446, 4587, 5004, 5016, 5148, 5282, 5421, 5434, 5643, 5928, 6116, 6669, 7228, 7506, 7524, 7722, 7923, 8151, 8892, 9174, 10008, 10296, 10564, 10842, 10868, 11286, 12232, 13338, 13761, 14456, 15012, 15048, 15444, 15846, 16263, 16302, 17784, 18348, 19877, 21128, 21684, 21736, 22572, 23769, 24453, 26676, 27522, 29051, 30024, 30888, 31692, 32526, 32604, 34333, 36696, 39754, 41283, 43368, 45144, 47538, 48789, 48906, 53352, 55044, 58102, 59631, 63384, 65052, 65208, 68666, 71307, 73359, 79508, 82566, 87153, 95076, 97578, 97812, 102999, 110088, 116204, 119262, 130104, 137332, 142614, 146718, 159016, 165132, 174306, 178893, 190152, 195156, 195624, 205998, 232408, 238524, 261459, 274664, 285228, 293436, 308997, 330264, 348612, 357786, 377663, 390312, 411996, 477048, 522918, 536679, 570456, 586872, 617994, 697224, 715572, 755326, 784377, 823992, 926991, 1045836, 1073358, 1132989, 1235988, 1431144, 1510652, 1568754, 1853982, 2091672, 2146716, 2265978, 2471976, 3021304, 3137508, 3398967, 3707964, 4293432, 4531956, 6275016, 6797934, 7415928, 9063912, 10196901, 13595868, 20393802, 27191736, 40787604, 81575208]

約数ペア:

[(1, 81575208), (2, 40787604), (3, 27191736), (4, 20393802), (6, 13595868), (8, 10196901), (9, 9063912), (11, 7415928), (12, 6797934), (13, 6275016), (18, 4531956), (19, 4293432), (22, 3707964), (24, 3398967), (26, 3137508), (27, 3021304), (33, 2471976), (36, 2265978), (38, 2146716), (39, 2091672), (44, 1853982), (52, 1568754), (54, 1510652), (57, 1431144), (66, 1235988), (72, 1132989), (76, 1073358), (78, 1045836), (88, 926991), (99, 823992), (104, 784377), (108, 755326), (114, 715572), (117, 697224), (132, 617994), (139, 586872), (143, 570456), (152, 536679), (156, 522918), (171, 477048), (198, 411996), (209, 390312), (216, 377663), (228, 357786), (234, 348612), (247, 330264), (264, 308997), (278, 293436), (286, 285228), (297, 274664), (312, 261459), (342, 238524), (351, 232408), (396, 205998), (417, 195624), (418, 195156), (429, 190152), (456, 178893), (468, 174306), (494, 165132), (513, 159016), (556, 146718), (572, 142614), (594, 137332), (627, 130104), (684, 119262), (702, 116204), (741, 110088), (792, 102999), (834, 97812), (836, 97578), (858, 95076), (936, 87153), (988, 82566), (1026, 79508), (1112, 73359), (1144, 71307), (1188, 68666), (1251, 65208), (1254, 65052), (1287, 63384), (1368, 59631), (1404, 58102), (1482, 55044), (1529, 53352), (1668, 48906), (1672, 48789), (1716, 47538), (1807, 45144), (1881, 43368), (1976, 41283), (2052, 39754), (2223, 36696), (2376, 34333), (2502, 32604), (2508, 32526), (2574, 31692), (2641, 30888), (2717, 30024), (2808, 29051), (2964, 27522), (3058, 26676), (3336, 24453), (3432, 23769), (3614, 22572), (3753, 21736), (3762, 21684), (3861, 21128), (4104, 19877), (4446, 18348), (4587, 17784), (5004, 16302), (5016, 16263), (5148, 15846), (5282, 15444), (5421, 15048), (5434, 15012), (5643, 14456), (5928, 13761), (6116, 13338), (6669, 12232), (7228, 11286), (7506, 10868), (7524, 10842), (7722, 10564), (7923, 10296), (8151, 10008), (8892, 9174)]