81203584

素因数分解:

$2^7\times 7^2\times {\mathrm{11}}^2\times {\mathrm{107}}^1$

素因数の和:157

約数の個数: 144

約数和(自身を含む): 208780740

約数和(自身を除く): 127577156

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 64, 77, 88, 98, 107, 112, 121, 128, 154, 176, 196, 214, 224, 242, 308, 352, 392, 428, 448, 484, 539, 616, 704, 749, 784, 847, 856, 896, 968, 1078, 1177, 1232, 1408, 1498, 1568, 1694, 1712, 1936, 2156, 2354, 2464, 2996, 3136, 3388, 3424, 3872, 4312, 4708, 4928, 5243, 5929, 5992, 6272, 6776, 6848, 7744, 8239, 8624, 9416, 9856, 10486, 11858, 11984, 12947, 13552, 13696, 15488, 16478, 17248, 18832, 20972, 23716, 23968, 25894, 27104, 32956, 34496, 37664, 41944, 47432, 47936, 51788, 54208, 57673, 65912, 68992, 75328, 83888, 90629, 94864, 95872, 103576, 108416, 115346, 131824, 150656, 167776, 181258, 189728, 207152, 230692, 263648, 335552, 362516, 379456, 414304, 461384, 527296, 634403, 671104, 725032, 758912, 828608, 922768, 1054592, 1268806, 1450064, 1657216, 1845536, 2537612, 2900128, 3691072, 5075224, 5800256, 7382144, 10150448, 11600512, 20300896, 40601792, 81203584]

約数ペア:

[(1, 81203584), (2, 40601792), (4, 20300896), (7, 11600512), (8, 10150448), (11, 7382144), (14, 5800256), (16, 5075224), (22, 3691072), (28, 2900128), (32, 2537612), (44, 1845536), (49, 1657216), (56, 1450064), (64, 1268806), (77, 1054592), (88, 922768), (98, 828608), (107, 758912), (112, 725032), (121, 671104), (128, 634403), (154, 527296), (176, 461384), (196, 414304), (214, 379456), (224, 362516), (242, 335552), (308, 263648), (352, 230692), (392, 207152), (428, 189728), (448, 181258), (484, 167776), (539, 150656), (616, 131824), (704, 115346), (749, 108416), (784, 103576), (847, 95872), (856, 94864), (896, 90629), (968, 83888), (1078, 75328), (1177, 68992), (1232, 65912), (1408, 57673), (1498, 54208), (1568, 51788), (1694, 47936), (1712, 47432), (1936, 41944), (2156, 37664), (2354, 34496), (2464, 32956), (2996, 27104), (3136, 25894), (3388, 23968), (3424, 23716), (3872, 20972), (4312, 18832), (4708, 17248), (4928, 16478), (5243, 15488), (5929, 13696), (5992, 13552), (6272, 12947), (6776, 11984), (6848, 11858), (7744, 10486), (8239, 9856), (8624, 9416)]