81564912

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1$

素因数の和:288

約数の個数: 240

約数和(自身を含む): 285169248

約数和(自身を除く): 203604336

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 16, 17, 18, 22, 24, 26, 33, 34, 36, 39, 44, 48, 51, 52, 66, 68, 72, 78, 88, 99, 102, 104, 117, 132, 136, 143, 144, 153, 156, 176, 187, 198, 204, 208, 221, 233, 234, 264, 272, 286, 306, 312, 374, 396, 408, 429, 442, 466, 468, 528, 561, 572, 612, 624, 663, 699, 748, 792, 816, 858, 884, 932, 936, 1122, 1144, 1224, 1287, 1326, 1398, 1496, 1584, 1683, 1716, 1768, 1864, 1872, 1989, 2097, 2244, 2288, 2431, 2448, 2563, 2574, 2652, 2796, 2992, 3029, 3366, 3432, 3536, 3728, 3961, 3978, 4194, 4488, 4862, 5126, 5148, 5304, 5592, 6058, 6732, 6864, 7293, 7689, 7922, 7956, 8388, 8976, 9087, 9724, 10252, 10296, 10608, 11184, 11883, 12116, 13464, 14586, 15378, 15844, 15912, 16776, 18174, 19448, 20504, 20592, 21879, 23067, 23766, 24232, 26928, 27261, 29172, 30756, 31688, 31824, 33319, 33552, 35649, 36348, 38896, 41008, 43571, 43758, 46134, 47532, 48464, 51493, 54522, 58344, 61512, 63376, 66638, 71298, 72696, 87142, 87516, 92268, 95064, 99957, 102986, 109044, 116688, 123024, 130713, 133276, 142596, 145392, 154479, 174284, 175032, 184536, 190128, 199914, 205972, 218088, 261426, 266552, 285192, 299871, 308958, 348568, 350064, 369072, 392139, 399828, 411944, 436176, 463437, 522852, 533104, 566423, 570384, 599742, 617916, 697136, 784278, 799656, 823888, 926874, 1045704, 1132846, 1199484, 1235832, 1568556, 1599312, 1699269, 1853748, 2091408, 2265692, 2398968, 2471664, 3137112, 3398538, 3707496, 4531384, 4797936, 5097807, 6274224, 6797076, 7414992, 9062768, 10195614, 13594152, 20391228, 27188304, 40782456, 81564912]

約数ペア:

[(1, 81564912), (2, 40782456), (3, 27188304), (4, 20391228), (6, 13594152), (8, 10195614), (9, 9062768), (11, 7414992), (12, 6797076), (13, 6274224), (16, 5097807), (17, 4797936), (18, 4531384), (22, 3707496), (24, 3398538), (26, 3137112), (33, 2471664), (34, 2398968), (36, 2265692), (39, 2091408), (44, 1853748), (48, 1699269), (51, 1599312), (52, 1568556), (66, 1235832), (68, 1199484), (72, 1132846), (78, 1045704), (88, 926874), (99, 823888), (102, 799656), (104, 784278), (117, 697136), (132, 617916), (136, 599742), (143, 570384), (144, 566423), (153, 533104), (156, 522852), (176, 463437), (187, 436176), (198, 411944), (204, 399828), (208, 392139), (221, 369072), (233, 350064), (234, 348568), (264, 308958), (272, 299871), (286, 285192), (306, 266552), (312, 261426), (374, 218088), (396, 205972), (408, 199914), (429, 190128), (442, 184536), (466, 175032), (468, 174284), (528, 154479), (561, 145392), (572, 142596), (612, 133276), (624, 130713), (663, 123024), (699, 116688), (748, 109044), (792, 102986), (816, 99957), (858, 95064), (884, 92268), (932, 87516), (936, 87142), (1122, 72696), (1144, 71298), (1224, 66638), (1287, 63376), (1326, 61512), (1398, 58344), (1496, 54522), (1584, 51493), (1683, 48464), (1716, 47532), (1768, 46134), (1864, 43758), (1872, 43571), (1989, 41008), (2097, 38896), (2244, 36348), (2288, 35649), (2431, 33552), (2448, 33319), (2563, 31824), (2574, 31688), (2652, 30756), (2796, 29172), (2992, 27261), (3029, 26928), (3366, 24232), (3432, 23766), (3536, 23067), (3728, 21879), (3961, 20592), (3978, 20504), (4194, 19448), (4488, 18174), (4862, 16776), (5126, 15912), (5148, 15844), (5304, 15378), (5592, 14586), (6058, 13464), (6732, 12116), (6864, 11883), (7293, 11184), (7689, 10608), (7922, 10296), (7956, 10252), (8388, 9724), (8976, 9087)]