256588560

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:292

約数の個数: 240

約数和(自身を含む): 911566656

約数和(自身を除く): 654978096

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 67, 72, 80, 81, 90, 108, 120, 134, 135, 144, 162, 180, 197, 201, 216, 240, 243, 268, 270, 324, 335, 360, 394, 402, 405, 432, 486, 536, 540, 591, 603, 648, 670, 720, 788, 804, 810, 972, 985, 1005, 1072, 1080, 1182, 1206, 1215, 1296, 1340, 1576, 1608, 1620, 1773, 1809, 1944, 1970, 2010, 2160, 2364, 2412, 2430, 2680, 2955, 3015, 3152, 3216, 3240, 3546, 3618, 3888, 3940, 4020, 4728, 4824, 4860, 5319, 5360, 5427, 5910, 6030, 6480, 7092, 7236, 7880, 8040, 8865, 9045, 9456, 9648, 9720, 10638, 10854, 11820, 12060, 13199, 14184, 14472, 15760, 15957, 16080, 16281, 17730, 18090, 19440, 21276, 21708, 23640, 24120, 26398, 26595, 27135, 28368, 28944, 31914, 32562, 35460, 36180, 39597, 42552, 43416, 47280, 47871, 48240, 52796, 53190, 54270, 63828, 65124, 65995, 70920, 72360, 79194, 79785, 81405, 85104, 86832, 95742, 105592, 106380, 108540, 118791, 127656, 130248, 131990, 141840, 144720, 158388, 159570, 162810, 191484, 197985, 211184, 212760, 217080, 237582, 239355, 255312, 260496, 263980, 316776, 319140, 325620, 356373, 382968, 395970, 425520, 434160, 475164, 478710, 527960, 593955, 633552, 638280, 651240, 712746, 765936, 791940, 950328, 957420, 1055920, 1069119, 1187910, 1276560, 1302480, 1425492, 1583880, 1781865, 1900656, 1914840, 2138238, 2375820, 2850984, 3167760, 3207357, 3563730, 3829680, 4276476, 4751640, 5345595, 5701968, 6414714, 7127460, 8552952, 9503280, 10691190, 12829428, 14254920, 16036785, 17105904, 21382380, 25658856, 28509840, 32073570, 42764760, 51317712, 64147140, 85529520, 128294280, 256588560]

約数ペア:

[(1, 256588560), (2, 128294280), (3, 85529520), (4, 64147140), (5, 51317712), (6, 42764760), (8, 32073570), (9, 28509840), (10, 25658856), (12, 21382380), (15, 17105904), (16, 16036785), (18, 14254920), (20, 12829428), (24, 10691190), (27, 9503280), (30, 8552952), (36, 7127460), (40, 6414714), (45, 5701968), (48, 5345595), (54, 4751640), (60, 4276476), (67, 3829680), (72, 3563730), (80, 3207357), (81, 3167760), (90, 2850984), (108, 2375820), (120, 2138238), (134, 1914840), (135, 1900656), (144, 1781865), (162, 1583880), (180, 1425492), (197, 1302480), (201, 1276560), (216, 1187910), (240, 1069119), (243, 1055920), (268, 957420), (270, 950328), (324, 791940), (335, 765936), (360, 712746), (394, 651240), (402, 638280), (405, 633552), (432, 593955), (486, 527960), (536, 478710), (540, 475164), (591, 434160), (603, 425520), (648, 395970), (670, 382968), (720, 356373), (788, 325620), (804, 319140), (810, 316776), (972, 263980), (985, 260496), (1005, 255312), (1072, 239355), (1080, 237582), (1182, 217080), (1206, 212760), (1215, 211184), (1296, 197985), (1340, 191484), (1576, 162810), (1608, 159570), (1620, 158388), (1773, 144720), (1809, 141840), (1944, 131990), (1970, 130248), (2010, 127656), (2160, 118791), (2364, 108540), (2412, 106380), (2430, 105592), (2680, 95742), (2955, 86832), (3015, 85104), (3152, 81405), (3216, 79785), (3240, 79194), (3546, 72360), (3618, 70920), (3888, 65995), (3940, 65124), (4020, 63828), (4728, 54270), (4824, 53190), (4860, 52796), (5319, 48240), (5360, 47871), (5427, 47280), (5910, 43416), (6030, 42552), (6480, 39597), (7092, 36180), (7236, 35460), (7880, 32562), (8040, 31914), (8865, 28944), (9045, 28368), (9456, 27135), (9648, 26595), (9720, 26398), (10638, 24120), (10854, 23640), (11820, 21708), (12060, 21276), (13199, 19440), (14184, 18090), (14472, 17730), (15760, 16281), (15957, 16080)]