638067456

素因数分解:

$2^8\times 3^6\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:310

約数の個数: 252

約数和(自身を含む): 2064301008

約数和(自身を除く): 1426233552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 64, 72, 78, 81, 96, 104, 108, 117, 128, 144, 156, 162, 192, 208, 216, 234, 243, 256, 263, 288, 312, 324, 351, 384, 416, 432, 468, 486, 526, 576, 624, 648, 702, 729, 768, 789, 832, 864, 936, 972, 1052, 1053, 1152, 1248, 1296, 1404, 1458, 1578, 1664, 1728, 1872, 1944, 2104, 2106, 2304, 2367, 2496, 2592, 2808, 2916, 3156, 3159, 3328, 3419, 3456, 3744, 3888, 4208, 4212, 4734, 4992, 5184, 5616, 5832, 6312, 6318, 6838, 6912, 7101, 7488, 7776, 8416, 8424, 9468, 9477, 9984, 10257, 10368, 11232, 11664, 12624, 12636, 13676, 14202, 14976, 15552, 16832, 16848, 18936, 18954, 20514, 20736, 21303, 22464, 23328, 25248, 25272, 27352, 28404, 29952, 30771, 31104, 33664, 33696, 37872, 37908, 41028, 42606, 44928, 46656, 50496, 50544, 54704, 56808, 61542, 62208, 63909, 67328, 67392, 75744, 75816, 82056, 85212, 89856, 92313, 93312, 100992, 101088, 109408, 113616, 123084, 127818, 134784, 151488, 151632, 164112, 170424, 184626, 186624, 191727, 201984, 202176, 218816, 227232, 246168, 255636, 269568, 276939, 302976, 303264, 328224, 340848, 369252, 383454, 404352, 437632, 454464, 492336, 511272, 553878, 605952, 606528, 656448, 681696, 738504, 766908, 808704, 830817, 875264, 908928, 984672, 1022544, 1107756, 1213056, 1312896, 1363392, 1477008, 1533816, 1661634, 1817856, 1969344, 2045088, 2215512, 2426112, 2492451, 2625792, 2726784, 2954016, 3067632, 3323268, 3938688, 4090176, 4431024, 4984902, 5453568, 5908032, 6135264, 6646536, 7877376, 8180352, 8862048, 9969804, 11816064, 12270528, 13293072, 16360704, 17724096, 19939608, 23632128, 24541056, 26586144, 35448192, 39879216, 49082112, 53172288, 70896384, 79758432, 106344576, 159516864, 212689152, 319033728, 638067456]

約数ペア:

[(1, 638067456), (2, 319033728), (3, 212689152), (4, 159516864), (6, 106344576), (8, 79758432), (9, 70896384), (12, 53172288), (13, 49082112), (16, 39879216), (18, 35448192), (24, 26586144), (26, 24541056), (27, 23632128), (32, 19939608), (36, 17724096), (39, 16360704), (48, 13293072), (52, 12270528), (54, 11816064), (64, 9969804), (72, 8862048), (78, 8180352), (81, 7877376), (96, 6646536), (104, 6135264), (108, 5908032), (117, 5453568), (128, 4984902), (144, 4431024), (156, 4090176), (162, 3938688), (192, 3323268), (208, 3067632), (216, 2954016), (234, 2726784), (243, 2625792), (256, 2492451), (263, 2426112), (288, 2215512), (312, 2045088), (324, 1969344), (351, 1817856), (384, 1661634), (416, 1533816), (432, 1477008), (468, 1363392), (486, 1312896), (526, 1213056), (576, 1107756), (624, 1022544), (648, 984672), (702, 908928), (729, 875264), (768, 830817), (789, 808704), (832, 766908), (864, 738504), (936, 681696), (972, 656448), (1052, 606528), (1053, 605952), (1152, 553878), (1248, 511272), (1296, 492336), (1404, 454464), (1458, 437632), (1578, 404352), (1664, 383454), (1728, 369252), (1872, 340848), (1944, 328224), (2104, 303264), (2106, 302976), (2304, 276939), (2367, 269568), (2496, 255636), (2592, 246168), (2808, 227232), (2916, 218816), (3156, 202176), (3159, 201984), (3328, 191727), (3419, 186624), (3456, 184626), (3744, 170424), (3888, 164112), (4208, 151632), (4212, 151488), (4734, 134784), (4992, 127818), (5184, 123084), (5616, 113616), (5832, 109408), (6312, 101088), (6318, 100992), (6838, 93312), (6912, 92313), (7101, 89856), (7488, 85212), (7776, 82056), (8416, 75816), (8424, 75744), (9468, 67392), (9477, 67328), (9984, 63909), (10257, 62208), (10368, 61542), (11232, 56808), (11664, 54704), (12624, 50544), (12636, 50496), (13676, 46656), (14202, 44928), (14976, 42606), (15552, 41028), (16832, 37908), (16848, 37872), (18936, 33696), (18954, 33664), (20514, 31104), (20736, 30771), (21303, 29952), (22464, 28404), (23328, 27352), (25248, 25272)]