256317152

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 192

約数和(自身を含む): 670602240

約数和(自身を除く): 414285088

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 32, 43, 46, 52, 56, 86, 89, 91, 92, 104, 112, 161, 172, 178, 182, 184, 208, 224, 299, 301, 322, 344, 356, 364, 368, 416, 559, 598, 602, 623, 644, 688, 712, 728, 736, 989, 1118, 1157, 1196, 1204, 1246, 1288, 1376, 1424, 1456, 1978, 2047, 2093, 2236, 2314, 2392, 2408, 2492, 2576, 2848, 2912, 3827, 3913, 3956, 4094, 4186, 4472, 4628, 4784, 4816, 4984, 5152, 6923, 7654, 7826, 7912, 8099, 8188, 8372, 8944, 9256, 9568, 9632, 9968, 12857, 13846, 14329, 15308, 15652, 15824, 16198, 16376, 16744, 17888, 18512, 19936, 25714, 26611, 26789, 27692, 28658, 30616, 31304, 31648, 32396, 32752, 33488, 37024, 49751, 51428, 53222, 53578, 55384, 57316, 61232, 62608, 64792, 65504, 66976, 88021, 89999, 99502, 102856, 106444, 107156, 110768, 114632, 122464, 125216, 129584, 176042, 179998, 186277, 199004, 205712, 212888, 214312, 221536, 229264, 259168, 348257, 352084, 359996, 372554, 398008, 411424, 425776, 428624, 458528, 616147, 696514, 704168, 719992, 745108, 796016, 851552, 857248, 1144273, 1232294, 1393028, 1408336, 1439984, 1490216, 1592032, 2288546, 2464588, 2786056, 2816672, 2879968, 2980432, 4577092, 4929176, 5572112, 5960864, 8009911, 9154184, 9858352, 11144224, 16019822, 18308368, 19716704, 32039644, 36616736, 64079288, 128158576, 256317152]

約数ペア:

[(1, 256317152), (2, 128158576), (4, 64079288), (7, 36616736), (8, 32039644), (13, 19716704), (14, 18308368), (16, 16019822), (23, 11144224), (26, 9858352), (28, 9154184), (32, 8009911), (43, 5960864), (46, 5572112), (52, 4929176), (56, 4577092), (86, 2980432), (89, 2879968), (91, 2816672), (92, 2786056), (104, 2464588), (112, 2288546), (161, 1592032), (172, 1490216), (178, 1439984), (182, 1408336), (184, 1393028), (208, 1232294), (224, 1144273), (299, 857248), (301, 851552), (322, 796016), (344, 745108), (356, 719992), (364, 704168), (368, 696514), (416, 616147), (559, 458528), (598, 428624), (602, 425776), (623, 411424), (644, 398008), (688, 372554), (712, 359996), (728, 352084), (736, 348257), (989, 259168), (1118, 229264), (1157, 221536), (1196, 214312), (1204, 212888), (1246, 205712), (1288, 199004), (1376, 186277), (1424, 179998), (1456, 176042), (1978, 129584), (2047, 125216), (2093, 122464), (2236, 114632), (2314, 110768), (2392, 107156), (2408, 106444), (2492, 102856), (2576, 99502), (2848, 89999), (2912, 88021), (3827, 66976), (3913, 65504), (3956, 64792), (4094, 62608), (4186, 61232), (4472, 57316), (4628, 55384), (4784, 53578), (4816, 53222), (4984, 51428), (5152, 49751), (6923, 37024), (7654, 33488), (7826, 32752), (7912, 32396), (8099, 31648), (8188, 31304), (8372, 30616), (8944, 28658), (9256, 27692), (9568, 26789), (9632, 26611), (9968, 25714), (12857, 19936), (13846, 18512), (14329, 17888), (15308, 16744), (15652, 16376), (15824, 16198)]