About the Number

131257728

131257727 ← → 131257729

2進数表記:111110100101101010110000000

漢数字表記:一億三千百二十五万七千七百二十八

素因数分解:

2 7 × 3 2 × 7 1 × 41 1 × 397 1

素因数の和:465
約数の個数: 192
約数和(自身を含む): 443308320
約数和(自身を除く): 312050592

約数列:
[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 41, 42, 48, 56, 63, 64, 72, 82, 84, 96, 112, 123, 126, 128, 144, 164, 168, 192, 224, 246, 252, 287, 288, 328, 336, 369, 384, 397, 448, 492, 504, 574, 576, 656, 672, 738, 794, 861, 896, 984, 1008, 1148, 1152, 1191, 1312, 1344, 1476, 1588, 1722, 1968, 2016, 2296, 2382, 2583, 2624, 2688, 2779, 2952, 3176, 3444, 3573, 3936, 4032, 4592, 4764, 5166, 5248, 5558, 5904, 6352, 6888, 7146, 7872, 8064, 8337, 9184, 9528, 10332, 11116, 11808, 12704, 13776, 14292, 15744, 16277, 16674, 18368, 19056, 20664, 22232, 23616, 25011, 25408, 27552, 28584, 32554, 33348, 36736, 38112, 41328, 44464, 47232, 48831, 50022, 50816, 55104, 57168, 65108, 66696, 76224, 82656, 88928, 97662, 100044, 110208, 113939, 114336, 130216, 133392, 146493, 152448, 165312, 177856, 195324, 200088, 227878, 228672, 260432, 266784, 292986, 330624, 341817, 355712, 390648, 400176, 455756, 457344, 520864, 533568, 585972, 683634, 781296, 800352, 911512, 1025451, 1041728, 1067136, 1171944, 1367268, 1562592, 1600704, 1823024, 2050902, 2083456, 2343888, 2734536, 3125184, 3201408, 3646048, 4101804, 4687776, 5469072, 6250368, 7292096, 8203608, 9375552, 10938144, 14584192, 16407216, 18751104, 21876288, 32814432, 43752576, 65628864, 131257728]

約数ペア:
[(1, 131257728), (2, 65628864), (3, 43752576), (4, 32814432), (6, 21876288), (7, 18751104), (8, 16407216), (9, 14584192), (12, 10938144), (14, 9375552), (16, 8203608), (18, 7292096), (21, 6250368), (24, 5469072), (28, 4687776), (32, 4101804), (36, 3646048), (41, 3201408), (42, 3125184), (48, 2734536), (56, 2343888), (63, 2083456), (64, 2050902), (72, 1823024), (82, 1600704), (84, 1562592), (96, 1367268), (112, 1171944), (123, 1067136), (126, 1041728), (128, 1025451), (144, 911512), (164, 800352), (168, 781296), (192, 683634), (224, 585972), (246, 533568), (252, 520864), (287, 457344), (288, 455756), (328, 400176), (336, 390648), (369, 355712), (384, 341817), (397, 330624), (448, 292986), (492, 266784), (504, 260432), (574, 228672), (576, 227878), (656, 200088), (672, 195324), (738, 177856), (794, 165312), (861, 152448), (896, 146493), (984, 133392), (1008, 130216), (1148, 114336), (1152, 113939), (1191, 110208), (1312, 100044), (1344, 97662), (1476, 88928), (1588, 82656), (1722, 76224), (1968, 66696), (2016, 65108), (2296, 57168), (2382, 55104), (2583, 50816), (2624, 50022), (2688, 48831), (2779, 47232), (2952, 44464), (3176, 41328), (3444, 38112), (3573, 36736), (3936, 33348), (4032, 32554), (4592, 28584), (4764, 27552), (5166, 25408), (5248, 25011), (5558, 23616), (5904, 22232), (6352, 20664), (6888, 19056), (7146, 18368), (7872, 16674), (8064, 16277), (8337, 15744), (9184, 14292), (9528, 13776), (10332, 12704), (11116, 11808)]

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