256994640

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{739}}^1$

素因数の和:791

約数の個数: 320

約数和(自身を含む): 1057075200

約数和(自身を除く): 800080560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 27, 28, 30, 35, 36, 40, 42, 45, 46, 48, 54, 56, 60, 63, 69, 70, 72, 80, 84, 90, 92, 105, 108, 112, 115, 120, 126, 135, 138, 140, 144, 161, 168, 180, 184, 189, 207, 210, 216, 230, 240, 252, 270, 276, 280, 315, 322, 336, 345, 360, 368, 378, 414, 420, 432, 460, 483, 504, 540, 552, 560, 621, 630, 644, 690, 720, 739, 756, 805, 828, 840, 920, 945, 966, 1008, 1035, 1080, 1104, 1242, 1260, 1288, 1380, 1449, 1478, 1512, 1610, 1656, 1680, 1840, 1890, 1932, 2070, 2160, 2217, 2415, 2484, 2520, 2576, 2760, 2898, 2956, 3024, 3105, 3220, 3312, 3695, 3780, 3864, 4140, 4347, 4434, 4830, 4968, 5040, 5173, 5520, 5796, 5912, 6210, 6440, 6651, 7245, 7390, 7560, 7728, 8280, 8694, 8868, 9660, 9936, 10346, 11085, 11592, 11824, 12420, 12880, 13302, 14490, 14780, 15120, 15519, 16560, 16997, 17388, 17736, 19320, 19953, 20692, 21735, 22170, 23184, 24840, 25865, 26604, 28980, 29560, 31038, 33255, 33994, 34776, 35472, 38640, 39906, 41384, 43470, 44340, 46557, 49680, 50991, 51730, 53208, 57960, 59120, 62076, 66510, 67988, 69552, 77595, 79812, 82768, 84985, 86940, 88680, 93114, 99765, 101982, 103460, 106416, 115920, 118979, 124152, 133020, 135976, 139671, 152973, 155190, 159624, 169970, 173880, 177360, 186228, 199530, 203964, 206920, 232785, 237958, 248304, 254955, 266040, 271952, 279342, 305946, 310380, 319248, 339940, 347760, 356937, 372456, 399060, 407928, 413840, 458919, 465570, 475916, 509910, 532080, 558684, 594895, 611892, 620760, 679880, 698355, 713874, 744912, 764865, 798120, 815856, 917838, 931140, 951832, 1019820, 1070811, 1117368, 1189790, 1223784, 1241520, 1359760, 1396710, 1427748, 1529730, 1596240, 1784685, 1835676, 1862280, 1903664, 2039640, 2141622, 2234736, 2294595, 2379580, 2447568, 2793420, 2855496, 3059460, 3212433, 3569370, 3671352, 3724560, 4079280, 4283244, 4589190, 4759160, 5354055, 5586840, 5710992, 6118920, 6424866, 7138740, 7342704, 8566488, 9178380, 9518320, 10708110, 11173680, 12237840, 12849732, 14277480, 16062165, 17132976, 18356760, 21416220, 25699464, 28554960, 32124330, 36713520, 42832440, 51398928, 64248660, 85664880, 128497320, 256994640]

約数ペア:

[(1, 256994640), (2, 128497320), (3, 85664880), (4, 64248660), (5, 51398928), (6, 42832440), (7, 36713520), (8, 32124330), (9, 28554960), (10, 25699464), (12, 21416220), (14, 18356760), (15, 17132976), (16, 16062165), (18, 14277480), (20, 12849732), (21, 12237840), (23, 11173680), (24, 10708110), (27, 9518320), (28, 9178380), (30, 8566488), (35, 7342704), (36, 7138740), (40, 6424866), (42, 6118920), (45, 5710992), (46, 5586840), (48, 5354055), (54, 4759160), (56, 4589190), (60, 4283244), (63, 4079280), (69, 3724560), (70, 3671352), (72, 3569370), (80, 3212433), (84, 3059460), (90, 2855496), (92, 2793420), (105, 2447568), (108, 2379580), (112, 2294595), (115, 2234736), (120, 2141622), (126, 2039640), (135, 1903664), (138, 1862280), (140, 1835676), (144, 1784685), (161, 1596240), (168, 1529730), (180, 1427748), (184, 1396710), (189, 1359760), (207, 1241520), (210, 1223784), (216, 1189790), (230, 1117368), (240, 1070811), (252, 1019820), (270, 951832), (276, 931140), (280, 917838), (315, 815856), (322, 798120), (336, 764865), (345, 744912), (360, 713874), (368, 698355), (378, 679880), (414, 620760), (420, 611892), (432, 594895), (460, 558684), (483, 532080), (504, 509910), (540, 475916), (552, 465570), (560, 458919), (621, 413840), (630, 407928), (644, 399060), (690, 372456), (720, 356937), (739, 347760), (756, 339940), (805, 319248), (828, 310380), (840, 305946), (920, 279342), (945, 271952), (966, 266040), (1008, 254955), (1035, 248304), (1080, 237958), (1104, 232785), (1242, 206920), (1260, 203964), (1288, 199530), (1380, 186228), (1449, 177360), (1478, 173880), (1512, 169970), (1610, 159624), (1656, 155190), (1680, 152973), (1840, 139671), (1890, 135976), (1932, 133020), (2070, 124152), (2160, 118979), (2217, 115920), (2415, 106416), (2484, 103460), (2520, 101982), (2576, 99765), (2760, 93114), (2898, 88680), (2956, 86940), (3024, 84985), (3105, 82768), (3220, 79812), (3312, 77595), (3695, 69552), (3780, 67988), (3864, 66510), (4140, 62076), (4347, 59120), (4434, 57960), (4830, 53208), (4968, 51730), (5040, 50991), (5173, 49680), (5520, 46557), (5796, 44340), (5912, 43470), (6210, 41384), (6440, 39906), (6651, 38640), (7245, 35472), (7390, 34776), (7560, 33994), (7728, 33255), (8280, 31038), (8694, 29560), (8868, 28980), (9660, 26604), (9936, 25865), (10346, 24840), (11085, 23184), (11592, 22170), (11824, 21735), (12420, 20692), (12880, 19953), (13302, 19320), (14490, 17736), (14780, 17388), (15120, 16997), (15519, 16560)]