257777856

素因数分解:

$2^6\times 3^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:340

約数の個数: 224

約数和(自身を含む): 878799360

約数和(自身を除く): 621021504

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 101, 108, 112, 126, 144, 168, 189, 192, 202, 211, 216, 224, 252, 288, 303, 336, 378, 404, 422, 432, 448, 504, 576, 606, 633, 672, 707, 756, 808, 844, 864, 909, 1008, 1212, 1266, 1344, 1414, 1477, 1512, 1616, 1688, 1728, 1818, 1899, 2016, 2121, 2424, 2532, 2727, 2828, 2954, 3024, 3232, 3376, 3636, 3798, 4032, 4242, 4431, 4848, 5064, 5454, 5656, 5697, 5908, 6048, 6363, 6464, 6752, 7272, 7596, 8484, 8862, 9696, 10128, 10908, 11312, 11394, 11816, 12096, 12726, 13293, 13504, 14544, 15192, 16968, 17724, 19089, 19392, 20256, 21311, 21816, 22624, 22788, 23632, 25452, 26586, 29088, 30384, 33936, 35448, 38178, 39879, 40512, 42622, 43632, 45248, 45576, 47264, 50904, 53172, 58176, 60768, 63933, 67872, 70896, 76356, 79758, 85244, 87264, 91152, 94528, 101808, 106344, 121536, 127866, 135744, 141792, 149177, 152712, 159516, 170488, 174528, 182304, 191799, 203616, 212688, 255732, 283584, 298354, 305424, 319032, 340976, 364608, 383598, 407232, 425376, 447531, 511464, 575397, 596708, 610848, 638064, 681952, 767196, 850752, 895062, 1022928, 1150794, 1193416, 1221696, 1276128, 1342593, 1363904, 1534392, 1790124, 2045856, 2301588, 2386832, 2552256, 2685186, 3068784, 3580248, 4027779, 4091712, 4603176, 4773664, 5370372, 6137568, 7160496, 8055558, 9206352, 9547328, 10740744, 12275136, 14320992, 16111116, 18412704, 21481488, 28641984, 32222232, 36825408, 42962976, 64444464, 85925952, 128888928, 257777856]

約数ペア:

[(1, 257777856), (2, 128888928), (3, 85925952), (4, 64444464), (6, 42962976), (7, 36825408), (8, 32222232), (9, 28641984), (12, 21481488), (14, 18412704), (16, 16111116), (18, 14320992), (21, 12275136), (24, 10740744), (27, 9547328), (28, 9206352), (32, 8055558), (36, 7160496), (42, 6137568), (48, 5370372), (54, 4773664), (56, 4603176), (63, 4091712), (64, 4027779), (72, 3580248), (84, 3068784), (96, 2685186), (101, 2552256), (108, 2386832), (112, 2301588), (126, 2045856), (144, 1790124), (168, 1534392), (189, 1363904), (192, 1342593), (202, 1276128), (211, 1221696), (216, 1193416), (224, 1150794), (252, 1022928), (288, 895062), (303, 850752), (336, 767196), (378, 681952), (404, 638064), (422, 610848), (432, 596708), (448, 575397), (504, 511464), (576, 447531), (606, 425376), (633, 407232), (672, 383598), (707, 364608), (756, 340976), (808, 319032), (844, 305424), (864, 298354), (909, 283584), (1008, 255732), (1212, 212688), (1266, 203616), (1344, 191799), (1414, 182304), (1477, 174528), (1512, 170488), (1616, 159516), (1688, 152712), (1728, 149177), (1818, 141792), (1899, 135744), (2016, 127866), (2121, 121536), (2424, 106344), (2532, 101808), (2727, 94528), (2828, 91152), (2954, 87264), (3024, 85244), (3232, 79758), (3376, 76356), (3636, 70896), (3798, 67872), (4032, 63933), (4242, 60768), (4431, 58176), (4848, 53172), (5064, 50904), (5454, 47264), (5656, 45576), (5697, 45248), (5908, 43632), (6048, 42622), (6363, 40512), (6464, 39879), (6752, 38178), (7272, 35448), (7596, 33936), (8484, 30384), (8862, 29088), (9696, 26586), (10128, 25452), (10908, 23632), (11312, 22788), (11394, 22624), (11816, 21816), (12096, 21311), (12726, 20256), (13293, 19392), (13504, 19089), (14544, 17724), (15192, 16968)]