81295984

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:219

約数の個数: 160

約数和(自身を含む): 217128960

約数和(自身を除く): 135832976

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 23, 28, 38, 44, 46, 56, 76, 77, 88, 92, 112, 133, 151, 152, 154, 161, 176, 184, 209, 253, 266, 302, 304, 308, 322, 368, 418, 437, 506, 532, 604, 616, 644, 836, 874, 1012, 1057, 1064, 1208, 1232, 1288, 1463, 1661, 1672, 1748, 1771, 2024, 2114, 2128, 2416, 2576, 2869, 2926, 3059, 3322, 3344, 3473, 3496, 3542, 4048, 4228, 4807, 5738, 5852, 6118, 6644, 6946, 6992, 7084, 8456, 9614, 11476, 11627, 11704, 12236, 13288, 13892, 14168, 16912, 19228, 20083, 22952, 23254, 23408, 24311, 24472, 26576, 27784, 28336, 31559, 33649, 38203, 38456, 40166, 45904, 46508, 48622, 48944, 55568, 63118, 65987, 67298, 76406, 76912, 80332, 93016, 97244, 126236, 131974, 134596, 152812, 160664, 186032, 194488, 220913, 252472, 263948, 267421, 269192, 305624, 321328, 388976, 441826, 461909, 504944, 527896, 534842, 538384, 611248, 725857, 883652, 923818, 1055792, 1069684, 1451714, 1767304, 1847636, 2139368, 2903428, 3534608, 3695272, 4278736, 5080999, 5806856, 7390544, 10161998, 11613712, 20323996, 40647992, 81295984]

約数ペア:

[(1, 81295984), (2, 40647992), (4, 20323996), (7, 11613712), (8, 10161998), (11, 7390544), (14, 5806856), (16, 5080999), (19, 4278736), (22, 3695272), (23, 3534608), (28, 2903428), (38, 2139368), (44, 1847636), (46, 1767304), (56, 1451714), (76, 1069684), (77, 1055792), (88, 923818), (92, 883652), (112, 725857), (133, 611248), (151, 538384), (152, 534842), (154, 527896), (161, 504944), (176, 461909), (184, 441826), (209, 388976), (253, 321328), (266, 305624), (302, 269192), (304, 267421), (308, 263948), (322, 252472), (368, 220913), (418, 194488), (437, 186032), (506, 160664), (532, 152812), (604, 134596), (616, 131974), (644, 126236), (836, 97244), (874, 93016), (1012, 80332), (1057, 76912), (1064, 76406), (1208, 67298), (1232, 65987), (1288, 63118), (1463, 55568), (1661, 48944), (1672, 48622), (1748, 46508), (1771, 45904), (2024, 40166), (2114, 38456), (2128, 38203), (2416, 33649), (2576, 31559), (2869, 28336), (2926, 27784), (3059, 26576), (3322, 24472), (3344, 24311), (3473, 23408), (3496, 23254), (3542, 22952), (4048, 20083), (4228, 19228), (4807, 16912), (5738, 14168), (5852, 13892), (6118, 13288), (6644, 12236), (6946, 11704), (6992, 11627), (7084, 11476), (8456, 9614)]