256247712

素因数分解:

$2^5\times 3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:545

約数の個数: 240

約数和(自身を含む): 892805760

約数和(自身を除く): 636558048

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 29, 32, 36, 42, 48, 54, 56, 58, 63, 72, 81, 84, 87, 96, 108, 112, 116, 126, 144, 162, 168, 174, 189, 203, 216, 224, 232, 252, 261, 288, 324, 336, 348, 378, 406, 432, 464, 487, 504, 522, 567, 609, 648, 672, 696, 756, 783, 812, 864, 928, 974, 1008, 1044, 1134, 1218, 1296, 1392, 1461, 1512, 1566, 1624, 1827, 1948, 2016, 2088, 2268, 2349, 2436, 2592, 2784, 2922, 3024, 3132, 3248, 3409, 3654, 3896, 4176, 4383, 4536, 4698, 4872, 5481, 5844, 6048, 6264, 6496, 6818, 7308, 7792, 8352, 8766, 9072, 9396, 9744, 10227, 10962, 11688, 12528, 13149, 13636, 14123, 14616, 15584, 16443, 17532, 18144, 18792, 19488, 20454, 21924, 23376, 25056, 26298, 27272, 28246, 29232, 30681, 32886, 35064, 37584, 39447, 40908, 42369, 43848, 46752, 52596, 54544, 56492, 58464, 61362, 65772, 70128, 75168, 78894, 81816, 84738, 87696, 92043, 98861, 105192, 109088, 112984, 122724, 127107, 131544, 140256, 157788, 163632, 169476, 175392, 184086, 197722, 210384, 225968, 245448, 254214, 263088, 276129, 296583, 315576, 327264, 338952, 368172, 381321, 395444, 420768, 451936, 490896, 508428, 526176, 552258, 593166, 631152, 677904, 736344, 762642, 790888, 889749, 981792, 1016856, 1104516, 1143963, 1186332, 1262304, 1355808, 1472688, 1525284, 1581776, 1779498, 2033712, 2209032, 2287926, 2372664, 2669247, 2945376, 3050568, 3163552, 3558996, 4067424, 4418064, 4575852, 4745328, 5338494, 6101136, 7117992, 8007741, 8836128, 9151704, 9490656, 10676988, 12202272, 14235984, 16015482, 18303408, 21353976, 28471968, 32030964, 36606816, 42707952, 64061928, 85415904, 128123856, 256247712]

約数ペア:

[(1, 256247712), (2, 128123856), (3, 85415904), (4, 64061928), (6, 42707952), (7, 36606816), (8, 32030964), (9, 28471968), (12, 21353976), (14, 18303408), (16, 16015482), (18, 14235984), (21, 12202272), (24, 10676988), (27, 9490656), (28, 9151704), (29, 8836128), (32, 8007741), (36, 7117992), (42, 6101136), (48, 5338494), (54, 4745328), (56, 4575852), (58, 4418064), (63, 4067424), (72, 3558996), (81, 3163552), (84, 3050568), (87, 2945376), (96, 2669247), (108, 2372664), (112, 2287926), (116, 2209032), (126, 2033712), (144, 1779498), (162, 1581776), (168, 1525284), (174, 1472688), (189, 1355808), (203, 1262304), (216, 1186332), (224, 1143963), (232, 1104516), (252, 1016856), (261, 981792), (288, 889749), (324, 790888), (336, 762642), (348, 736344), (378, 677904), (406, 631152), (432, 593166), (464, 552258), (487, 526176), (504, 508428), (522, 490896), (567, 451936), (609, 420768), (648, 395444), (672, 381321), (696, 368172), (756, 338952), (783, 327264), (812, 315576), (864, 296583), (928, 276129), (974, 263088), (1008, 254214), (1044, 245448), (1134, 225968), (1218, 210384), (1296, 197722), (1392, 184086), (1461, 175392), (1512, 169476), (1566, 163632), (1624, 157788), (1827, 140256), (1948, 131544), (2016, 127107), (2088, 122724), (2268, 112984), (2349, 109088), (2436, 105192), (2592, 98861), (2784, 92043), (2922, 87696), (3024, 84738), (3132, 81816), (3248, 78894), (3409, 75168), (3654, 70128), (3896, 65772), (4176, 61362), (4383, 58464), (4536, 56492), (4698, 54544), (4872, 52596), (5481, 46752), (5844, 43848), (6048, 42369), (6264, 40908), (6496, 39447), (6818, 37584), (7308, 35064), (7792, 32886), (8352, 30681), (8766, 29232), (9072, 28246), (9396, 27272), (9744, 26298), (10227, 25056), (10962, 23376), (11688, 21924), (12528, 20454), (13149, 19488), (13636, 18792), (14123, 18144), (14616, 17532), (15584, 16443)]