256478796

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:213

約数の個数: 288

約数和(自身を含む): 868008960

約数和(自身を除く): 611530164

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 19, 21, 23, 28, 34, 36, 38, 42, 46, 51, 57, 63, 68, 69, 76, 84, 92, 102, 114, 119, 126, 133, 137, 138, 153, 161, 171, 204, 207, 228, 238, 252, 266, 274, 276, 306, 322, 323, 342, 357, 391, 399, 411, 414, 437, 476, 483, 532, 548, 612, 644, 646, 684, 714, 782, 798, 822, 828, 874, 959, 966, 969, 1071, 1173, 1197, 1233, 1292, 1311, 1428, 1449, 1564, 1596, 1644, 1748, 1918, 1932, 1938, 2142, 2261, 2329, 2346, 2394, 2466, 2603, 2622, 2737, 2877, 2898, 2907, 3059, 3151, 3519, 3836, 3876, 3933, 4284, 4522, 4658, 4692, 4788, 4932, 5206, 5244, 5474, 5754, 5796, 5814, 6118, 6302, 6783, 6987, 7038, 7429, 7809, 7866, 8211, 8631, 9044, 9177, 9316, 9453, 10412, 10948, 11508, 11628, 12236, 12604, 13566, 13974, 14076, 14858, 15618, 15732, 16303, 16422, 17262, 18221, 18354, 18906, 20349, 20961, 22057, 22287, 23427, 24633, 27132, 27531, 27948, 28359, 29716, 31236, 32606, 32844, 34524, 36442, 36708, 37812, 40698, 41922, 44114, 44251, 44574, 46854, 48909, 49266, 52003, 53567, 54663, 55062, 56718, 59869, 65212, 66171, 66861, 72884, 81396, 83844, 88228, 88502, 89148, 93708, 97818, 98532, 104006, 107134, 109326, 110124, 113436, 119738, 132342, 132753, 133722, 146727, 156009, 160701, 163989, 177004, 179607, 195636, 198513, 208012, 214268, 218652, 239476, 264684, 265506, 267444, 293454, 309757, 312018, 321402, 327978, 359214, 374969, 397026, 398259, 419083, 468027, 482103, 531012, 538821, 586908, 619514, 624036, 642804, 655956, 718428, 749938, 794052, 796518, 838166, 929271, 936054, 964206, 1017773, 1077642, 1124907, 1239028, 1257249, 1499876, 1593036, 1676332, 1858542, 1872108, 1928412, 2035546, 2155284, 2249814, 2514498, 2787813, 3053319, 3374721, 3717084, 3771747, 4071092, 4499628, 5028996, 5575626, 6106638, 6749442, 7124411, 7543494, 9159957, 11151252, 12213276, 13498884, 14248822, 15086988, 18319914, 21373233, 28497644, 36639828, 42746466, 64119699, 85492932, 128239398, 256478796]

約数ペア:

[(1, 256478796), (2, 128239398), (3, 85492932), (4, 64119699), (6, 42746466), (7, 36639828), (9, 28497644), (12, 21373233), (14, 18319914), (17, 15086988), (18, 14248822), (19, 13498884), (21, 12213276), (23, 11151252), (28, 9159957), (34, 7543494), (36, 7124411), (38, 6749442), (42, 6106638), (46, 5575626), (51, 5028996), (57, 4499628), (63, 4071092), (68, 3771747), (69, 3717084), (76, 3374721), (84, 3053319), (92, 2787813), (102, 2514498), (114, 2249814), (119, 2155284), (126, 2035546), (133, 1928412), (137, 1872108), (138, 1858542), (153, 1676332), (161, 1593036), (171, 1499876), (204, 1257249), (207, 1239028), (228, 1124907), (238, 1077642), (252, 1017773), (266, 964206), (274, 936054), (276, 929271), (306, 838166), (322, 796518), (323, 794052), (342, 749938), (357, 718428), (391, 655956), (399, 642804), (411, 624036), (414, 619514), (437, 586908), (476, 538821), (483, 531012), (532, 482103), (548, 468027), (612, 419083), (644, 398259), (646, 397026), (684, 374969), (714, 359214), (782, 327978), (798, 321402), (822, 312018), (828, 309757), (874, 293454), (959, 267444), (966, 265506), (969, 264684), (1071, 239476), (1173, 218652), (1197, 214268), (1233, 208012), (1292, 198513), (1311, 195636), (1428, 179607), (1449, 177004), (1564, 163989), (1596, 160701), (1644, 156009), (1748, 146727), (1918, 133722), (1932, 132753), (1938, 132342), (2142, 119738), (2261, 113436), (2329, 110124), (2346, 109326), (2394, 107134), (2466, 104006), (2603, 98532), (2622, 97818), (2737, 93708), (2877, 89148), (2898, 88502), (2907, 88228), (3059, 83844), (3151, 81396), (3519, 72884), (3836, 66861), (3876, 66171), (3933, 65212), (4284, 59869), (4522, 56718), (4658, 55062), (4692, 54663), (4788, 53567), (4932, 52003), (5206, 49266), (5244, 48909), (5474, 46854), (5754, 44574), (5796, 44251), (5814, 44114), (6118, 41922), (6302, 40698), (6783, 37812), (6987, 36708), (7038, 36442), (7429, 34524), (7809, 32844), (7866, 32606), (8211, 31236), (8631, 29716), (9044, 28359), (9177, 27948), (9316, 27531), (9453, 27132), (10412, 24633), (10948, 23427), (11508, 22287), (11628, 22057), (12236, 20961), (12604, 20349), (13566, 18906), (13974, 18354), (14076, 18221), (14858, 17262), (15618, 16422), (15732, 16303)]