640919552

素因数分解:

$2^{11}\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:242

約数の個数: 192

約数和(自身を含む): 1669449600

約数和(自身を除く): 1028530048

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32, 38, 52, 56, 64, 76, 91, 104, 112, 128, 133, 152, 181, 182, 208, 224, 247, 256, 266, 304, 362, 364, 416, 448, 494, 512, 532, 608, 724, 728, 832, 896, 988, 1024, 1064, 1216, 1267, 1448, 1456, 1664, 1729, 1792, 1976, 2048, 2128, 2353, 2432, 2534, 2896, 2912, 3328, 3439, 3458, 3584, 3952, 4256, 4706, 4864, 5068, 5792, 5824, 6656, 6878, 6916, 7168, 7904, 8512, 9412, 9728, 10136, 11584, 11648, 13312, 13756, 13832, 14336, 15808, 16471, 17024, 18824, 19456, 20272, 23168, 23296, 24073, 26624, 27512, 27664, 31616, 32942, 34048, 37648, 38912, 40544, 44707, 46336, 46592, 48146, 55024, 55328, 63232, 65884, 68096, 75296, 81088, 89414, 92672, 93184, 96292, 110048, 110656, 126464, 131768, 136192, 150592, 162176, 178828, 185344, 186368, 192584, 220096, 221312, 252928, 263536, 272384, 301184, 312949, 324352, 357656, 370688, 385168, 440192, 442624, 505856, 527072, 602368, 625898, 648704, 715312, 770336, 880384, 885248, 1054144, 1204736, 1251796, 1297408, 1430624, 1540672, 1760768, 1770496, 2108288, 2409472, 2503592, 2594816, 2861248, 3081344, 3521536, 3540992, 4216576, 4818944, 5007184, 5722496, 6162688, 7043072, 8433152, 10014368, 11444992, 12325376, 16866304, 20028736, 22889984, 24650752, 33732608, 40057472, 45779968, 49301504, 80114944, 91559936, 160229888, 320459776, 640919552]

約数ペア:

[(1, 640919552), (2, 320459776), (4, 160229888), (7, 91559936), (8, 80114944), (13, 49301504), (14, 45779968), (16, 40057472), (19, 33732608), (26, 24650752), (28, 22889984), (32, 20028736), (38, 16866304), (52, 12325376), (56, 11444992), (64, 10014368), (76, 8433152), (91, 7043072), (104, 6162688), (112, 5722496), (128, 5007184), (133, 4818944), (152, 4216576), (181, 3540992), (182, 3521536), (208, 3081344), (224, 2861248), (247, 2594816), (256, 2503592), (266, 2409472), (304, 2108288), (362, 1770496), (364, 1760768), (416, 1540672), (448, 1430624), (494, 1297408), (512, 1251796), (532, 1204736), (608, 1054144), (724, 885248), (728, 880384), (832, 770336), (896, 715312), (988, 648704), (1024, 625898), (1064, 602368), (1216, 527072), (1267, 505856), (1448, 442624), (1456, 440192), (1664, 385168), (1729, 370688), (1792, 357656), (1976, 324352), (2048, 312949), (2128, 301184), (2353, 272384), (2432, 263536), (2534, 252928), (2896, 221312), (2912, 220096), (3328, 192584), (3439, 186368), (3458, 185344), (3584, 178828), (3952, 162176), (4256, 150592), (4706, 136192), (4864, 131768), (5068, 126464), (5792, 110656), (5824, 110048), (6656, 96292), (6878, 93184), (6916, 92672), (7168, 89414), (7904, 81088), (8512, 75296), (9412, 68096), (9728, 65884), (10136, 63232), (11584, 55328), (11648, 55024), (13312, 48146), (13756, 46592), (13832, 46336), (14336, 44707), (15808, 40544), (16471, 38912), (17024, 37648), (18824, 34048), (19456, 32942), (20272, 31616), (23168, 27664), (23296, 27512), (24073, 26624)]