638394064

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{163}}^1$

素因数の和:234

約数の個数: 180

約数和(自身を含む): 1660678432

約数和(自身を除く): 1022284368

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 34, 44, 56, 68, 77, 88, 112, 119, 121, 136, 154, 163, 176, 187, 238, 242, 272, 289, 308, 326, 374, 476, 484, 578, 616, 652, 748, 847, 952, 968, 1141, 1156, 1232, 1304, 1309, 1496, 1694, 1793, 1904, 1936, 2023, 2057, 2282, 2312, 2608, 2618, 2771, 2992, 3179, 3388, 3586, 4046, 4114, 4564, 4624, 5236, 5542, 6358, 6776, 7172, 8092, 8228, 9128, 10472, 11084, 12551, 12716, 13552, 14344, 14399, 16184, 16456, 18256, 19397, 19723, 20944, 22168, 22253, 25102, 25432, 28688, 28798, 30481, 32368, 32912, 34969, 38794, 39446, 44336, 44506, 47107, 50204, 50864, 57596, 60962, 69938, 77588, 78892, 89012, 94214, 100408, 115192, 121924, 138061, 139876, 155176, 157784, 178024, 188428, 200816, 213367, 230384, 243848, 244783, 276122, 279752, 310352, 315568, 329749, 335291, 356048, 376856, 426734, 487696, 489566, 518177, 552244, 559504, 659498, 670582, 753712, 853468, 979132, 1036354, 1104488, 1318996, 1341164, 1706936, 1958264, 2072708, 2208976, 2347037, 2637992, 2682328, 3413872, 3627239, 3916528, 4145416, 4694074, 5275984, 5364656, 5699947, 7254478, 8290832, 9388148, 11399894, 14508956, 18776296, 22799788, 29017912, 37552592, 39899629, 45599576, 58035824, 79799258, 91199152, 159598516, 319197032, 638394064]

約数ペア:

[(1, 638394064), (2, 319197032), (4, 159598516), (7, 91199152), (8, 79799258), (11, 58035824), (14, 45599576), (16, 39899629), (17, 37552592), (22, 29017912), (28, 22799788), (34, 18776296), (44, 14508956), (56, 11399894), (68, 9388148), (77, 8290832), (88, 7254478), (112, 5699947), (119, 5364656), (121, 5275984), (136, 4694074), (154, 4145416), (163, 3916528), (176, 3627239), (187, 3413872), (238, 2682328), (242, 2637992), (272, 2347037), (289, 2208976), (308, 2072708), (326, 1958264), (374, 1706936), (476, 1341164), (484, 1318996), (578, 1104488), (616, 1036354), (652, 979132), (748, 853468), (847, 753712), (952, 670582), (968, 659498), (1141, 559504), (1156, 552244), (1232, 518177), (1304, 489566), (1309, 487696), (1496, 426734), (1694, 376856), (1793, 356048), (1904, 335291), (1936, 329749), (2023, 315568), (2057, 310352), (2282, 279752), (2312, 276122), (2608, 244783), (2618, 243848), (2771, 230384), (2992, 213367), (3179, 200816), (3388, 188428), (3586, 178024), (4046, 157784), (4114, 155176), (4564, 139876), (4624, 138061), (5236, 121924), (5542, 115192), (6358, 100408), (6776, 94214), (7172, 89012), (8092, 78892), (8228, 77588), (9128, 69938), (10472, 60962), (11084, 57596), (12551, 50864), (12716, 50204), (13552, 47107), (14344, 44506), (14399, 44336), (16184, 39446), (16456, 38794), (18256, 34969), (19397, 32912), (19723, 32368), (20944, 30481), (22168, 28798), (22253, 28688), (25102, 25432)]