640078848

素因数分解:

$2^{10}\times 3^4\times {\mathrm{7717}}^1$

素因数の和:7749

約数の個数: 110

約数和(自身を含む): 1911648266

約数和(自身を除く): 1271569418

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 256, 288, 324, 384, 432, 512, 576, 648, 768, 864, 1024, 1152, 1296, 1536, 1728, 2304, 2592, 3072, 3456, 4608, 5184, 6912, 7717, 9216, 10368, 13824, 15434, 20736, 23151, 27648, 30868, 41472, 46302, 61736, 69453, 82944, 92604, 123472, 138906, 185208, 208359, 246944, 277812, 370416, 416718, 493888, 555624, 625077, 740832, 833436, 987776, 1111248, 1250154, 1481664, 1666872, 1975552, 2222496, 2500308, 2963328, 3333744, 3951104, 4444992, 5000616, 5926656, 6667488, 7902208, 8889984, 10001232, 11853312, 13334976, 17779968, 20002464, 23706624, 26669952, 35559936, 40004928, 53339904, 71119872, 80009856, 106679808, 160019712, 213359616, 320039424, 640078848]

約数ペア:

[(1, 640078848), (2, 320039424), (3, 213359616), (4, 160019712), (6, 106679808), (8, 80009856), (9, 71119872), (12, 53339904), (16, 40004928), (18, 35559936), (24, 26669952), (27, 23706624), (32, 20002464), (36, 17779968), (48, 13334976), (54, 11853312), (64, 10001232), (72, 8889984), (81, 7902208), (96, 6667488), (108, 5926656), (128, 5000616), (144, 4444992), (162, 3951104), (192, 3333744), (216, 2963328), (256, 2500308), (288, 2222496), (324, 1975552), (384, 1666872), (432, 1481664), (512, 1250154), (576, 1111248), (648, 987776), (768, 833436), (864, 740832), (1024, 625077), (1152, 555624), (1296, 493888), (1536, 416718), (1728, 370416), (2304, 277812), (2592, 246944), (3072, 208359), (3456, 185208), (4608, 138906), (5184, 123472), (6912, 92604), (7717, 82944), (9216, 69453), (10368, 61736), (13824, 46302), (15434, 41472), (20736, 30868), (23151, 27648)]