About the Number

128681280

128681279 ← → 128681281

2進数表記:111101010111000010101000000

漢数字表記:一億二千八百六十八万千二百八十

素因数分解:

2 6 × 3 2 × 5 1 × 7 1 × 13 1 × 491 1

素因数の和:534
約数の個数: 336
約数和(自身を含む): 545860224
約数和(自身を除く): 417178944

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 32, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 64, 65, 70, 72, 78, 80, 84, 90, 91, 96, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 160, 168, 180, 182, 192, 195, 208, 210, 224, 234, 240, 252, 260, 273, 280, 288, 312, 315, 320, 336, 360, 364, 390, 416, 420, 448, 455, 468, 480, 491, 504, 520, 546, 560, 576, 585, 624, 630, 672, 720, 728, 780, 819, 832, 840, 910, 936, 960, 982, 1008, 1040, 1092, 1120, 1170, 1248, 1260, 1344, 1365, 1440, 1456, 1473, 1560, 1638, 1680, 1820, 1872, 1964, 2016, 2080, 2184, 2240, 2340, 2455, 2496, 2520, 2730, 2880, 2912, 2946, 3120, 3276, 3360, 3437, 3640, 3744, 3928, 4032, 4095, 4160, 4368, 4419, 4680, 4910, 5040, 5460, 5824, 5892, 6240, 6383, 6552, 6720, 6874, 7280, 7365, 7488, 7856, 8190, 8736, 8838, 9360, 9820, 10080, 10311, 10920, 11784, 12480, 12766, 13104, 13748, 14560, 14730, 15712, 16380, 17185, 17472, 17676, 18720, 19149, 19640, 20160, 20622, 21840, 22095, 23568, 25532, 26208, 27496, 29120, 29460, 30933, 31424, 31915, 32760, 34370, 35352, 37440, 38298, 39280, 41244, 43680, 44190, 44681, 47136, 51064, 51555, 52416, 54992, 57447, 58920, 61866, 63830, 65520, 68740, 70704, 76596, 78560, 82488, 87360, 88380, 89362, 94272, 95745, 102128, 103110, 109984, 114894, 117840, 123732, 127660, 131040, 134043, 137480, 141408, 153192, 154665, 157120, 164976, 176760, 178724, 191490, 204256, 206220, 219968, 223405, 229788, 235680, 247464, 255320, 262080, 268086, 274960, 282816, 287235, 306384, 309330, 329952, 353520, 357448, 382980, 402129, 408512, 412440, 446810, 459576, 471360, 494928, 510640, 536172, 549920, 574470, 612768, 618660, 659904, 670215, 707040, 714896, 765960, 804258, 824880, 893620, 919152, 989856, 1021280, 1072344, 1099840, 1148940, 1225536, 1237320, 1340430, 1414080, 1429792, 1531920, 1608516, 1649760, 1787240, 1838304, 1979712, 2010645, 2042560, 2144688, 2297880, 2474640, 2680860, 2859584, 3063840, 3217032, 3299520, 3574480, 3676608, 4021290, 4289376, 4595760, 4949280, 5361720, 6127680, 6434064, 7148960, 8042580, 8578752, 9191520, 9898560, 10723440, 12868128, 14297920, 16085160, 18383040, 21446880, 25736256, 32170320, 42893760, 64340640, 128681280]

約数ペア:
[(1, 128681280), (2, 64340640), (3, 42893760), (4, 32170320), (5, 25736256), (6, 21446880), (7, 18383040), (8, 16085160), (9, 14297920), (10, 12868128), (12, 10723440), (13, 9898560), (14, 9191520), (15, 8578752), (16, 8042580), (18, 7148960), (20, 6434064), (21, 6127680), (24, 5361720), (26, 4949280), (28, 4595760), (30, 4289376), (32, 4021290), (35, 3676608), (36, 3574480), (39, 3299520), (40, 3217032), (42, 3063840), (45, 2859584), (48, 2680860), (52, 2474640), (56, 2297880), (60, 2144688), (63, 2042560), (64, 2010645), (65, 1979712), (70, 1838304), (72, 1787240), (78, 1649760), (80, 1608516), (84, 1531920), (90, 1429792), (91, 1414080), (96, 1340430), (104, 1237320), (105, 1225536), (112, 1148940), (117, 1099840), (120, 1072344), (126, 1021280), (130, 989856), (140, 919152), (144, 893620), (156, 824880), (160, 804258), (168, 765960), (180, 714896), (182, 707040), (192, 670215), (195, 659904), (208, 618660), (210, 612768), (224, 574470), (234, 549920), (240, 536172), (252, 510640), (260, 494928), (273, 471360), (280, 459576), (288, 446810), (312, 412440), (315, 408512), (320, 402129), (336, 382980), (360, 357448), (364, 353520), (390, 329952), (416, 309330), (420, 306384), (448, 287235), (455, 282816), (468, 274960), (480, 268086), (491, 262080), (504, 255320), (520, 247464), (546, 235680), (560, 229788), (576, 223405), (585, 219968), (624, 206220), (630, 204256), (672, 191490), (720, 178724), (728, 176760), (780, 164976), (819, 157120), (832, 154665), (840, 153192), (910, 141408), (936, 137480), (960, 134043), (982, 131040), (1008, 127660), (1040, 123732), (1092, 117840), (1120, 114894), (1170, 109984), (1248, 103110), (1260, 102128), (1344, 95745), (1365, 94272), (1440, 89362), (1456, 88380), (1473, 87360), (1560, 82488), (1638, 78560), (1680, 76596), (1820, 70704), (1872, 68740), (1964, 65520), (2016, 63830), (2080, 61866), (2184, 58920), (2240, 57447), (2340, 54992), (2455, 52416), (2496, 51555), (2520, 51064), (2730, 47136), (2880, 44681), (2912, 44190), (2946, 43680), (3120, 41244), (3276, 39280), (3360, 38298), (3437, 37440), (3640, 35352), (3744, 34370), (3928, 32760), (4032, 31915), (4095, 31424), (4160, 30933), (4368, 29460), (4419, 29120), (4680, 27496), (4910, 26208), (5040, 25532), (5460, 23568), (5824, 22095), (5892, 21840), (6240, 20622), (6383, 20160), (6552, 19640), (6720, 19149), (6874, 18720), (7280, 17676), (7365, 17472), (7488, 17185), (7856, 16380), (8190, 15712), (8736, 14730), (8838, 14560), (9360, 13748), (9820, 13104), (10080, 12766), (10311, 12480), (10920, 11784)]

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