81013856

素因数分解:

$2^5\times 7^3\times {\mathrm{11}}^2\times {\mathrm{61}}^1$

素因数の和:114

約数の個数: 144

約数和(自身を含む): 207799200

約数和(自身を除く): 126785344

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 61, 77, 88, 98, 112, 121, 122, 154, 176, 196, 224, 242, 244, 308, 343, 352, 392, 427, 484, 488, 539, 616, 671, 686, 784, 847, 854, 968, 976, 1078, 1232, 1342, 1372, 1568, 1694, 1708, 1936, 1952, 2156, 2464, 2684, 2744, 2989, 3388, 3416, 3773, 3872, 4312, 4697, 5368, 5488, 5929, 5978, 6776, 6832, 7381, 7546, 8624, 9394, 10736, 10976, 11858, 11956, 13552, 13664, 14762, 15092, 17248, 18788, 20923, 21472, 23716, 23912, 27104, 29524, 30184, 32879, 37576, 41503, 41846, 47432, 47824, 51667, 59048, 60368, 65758, 75152, 83006, 83692, 94864, 95648, 103334, 118096, 120736, 131516, 150304, 166012, 167384, 189728, 206668, 230153, 236192, 263032, 332024, 334768, 361669, 413336, 460306, 526064, 664048, 669536, 723338, 826672, 920612, 1052128, 1328096, 1446676, 1653344, 1841224, 2531683, 2893352, 3682448, 5063366, 5786704, 7364896, 10126732, 11573408, 20253464, 40506928, 81013856]

約数ペア:

[(1, 81013856), (2, 40506928), (4, 20253464), (7, 11573408), (8, 10126732), (11, 7364896), (14, 5786704), (16, 5063366), (22, 3682448), (28, 2893352), (32, 2531683), (44, 1841224), (49, 1653344), (56, 1446676), (61, 1328096), (77, 1052128), (88, 920612), (98, 826672), (112, 723338), (121, 669536), (122, 664048), (154, 526064), (176, 460306), (196, 413336), (224, 361669), (242, 334768), (244, 332024), (308, 263032), (343, 236192), (352, 230153), (392, 206668), (427, 189728), (484, 167384), (488, 166012), (539, 150304), (616, 131516), (671, 120736), (686, 118096), (784, 103334), (847, 95648), (854, 94864), (968, 83692), (976, 83006), (1078, 75152), (1232, 65758), (1342, 60368), (1372, 59048), (1568, 51667), (1694, 47824), (1708, 47432), (1936, 41846), (1952, 41503), (2156, 37576), (2464, 32879), (2684, 30184), (2744, 29524), (2989, 27104), (3388, 23912), (3416, 23716), (3773, 21472), (3872, 20923), (4312, 18788), (4697, 17248), (5368, 15092), (5488, 14762), (5929, 13664), (5978, 13552), (6776, 11956), (6832, 11858), (7381, 10976), (7546, 10736), (8624, 9394)]