About the Number

247985280

247985279 ← → 247985281

2進数表記:1110110001111111010010000000

漢数字表記:二億四千七百九十八万五千二百八十

素因数分解:

2 7 × 3 3 × 5 1 × 113 1 × 127 1

素因数の和:268
約数の個数: 256
約数和(自身を含む): 893030400
約数和(自身を除く): 645045120

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 113, 120, 127, 128, 135, 144, 160, 180, 192, 216, 226, 240, 254, 270, 288, 320, 339, 360, 381, 384, 432, 452, 480, 508, 540, 565, 576, 635, 640, 678, 720, 762, 864, 904, 960, 1016, 1017, 1080, 1130, 1143, 1152, 1270, 1356, 1440, 1524, 1695, 1728, 1808, 1905, 1920, 2032, 2034, 2160, 2260, 2286, 2540, 2712, 2880, 3048, 3051, 3390, 3429, 3456, 3616, 3810, 4064, 4068, 4320, 4520, 4572, 5080, 5085, 5424, 5715, 5760, 6096, 6102, 6780, 6858, 7232, 7620, 8128, 8136, 8640, 9040, 9144, 10160, 10170, 10848, 11430, 12192, 12204, 13560, 13716, 14351, 14464, 15240, 15255, 16256, 16272, 17145, 17280, 18080, 18288, 20320, 20340, 21696, 22860, 24384, 24408, 27120, 27432, 28702, 30480, 30510, 32544, 34290, 36160, 36576, 40640, 40680, 43053, 43392, 45720, 48768, 48816, 54240, 54864, 57404, 60960, 61020, 65088, 68580, 71755, 72320, 73152, 81280, 81360, 86106, 91440, 97632, 108480, 109728, 114808, 121920, 122040, 129159, 130176, 137160, 143510, 146304, 162720, 172212, 182880, 195264, 215265, 216960, 219456, 229616, 243840, 244080, 258318, 274320, 287020, 325440, 344424, 365760, 387477, 390528, 430530, 438912, 459232, 488160, 516636, 548640, 574040, 645795, 650880, 688848, 731520, 774954, 861060, 918464, 976320, 1033272, 1097280, 1148080, 1291590, 1377696, 1549908, 1722120, 1836928, 1937385, 1952640, 2066544, 2194560, 2296160, 2583180, 2755392, 3099816, 3444240, 3874770, 4133088, 4592320, 5166360, 5510784, 6199632, 6888480, 7749540, 8266176, 9184640, 10332720, 12399264, 13776960, 15499080, 16532352, 20665440, 24798528, 27553920, 30998160, 41330880, 49597056, 61996320, 82661760, 123992640, 247985280]

約数ペア:
[(1, 247985280), (2, 123992640), (3, 82661760), (4, 61996320), (5, 49597056), (6, 41330880), (8, 30998160), (9, 27553920), (10, 24798528), (12, 20665440), (15, 16532352), (16, 15499080), (18, 13776960), (20, 12399264), (24, 10332720), (27, 9184640), (30, 8266176), (32, 7749540), (36, 6888480), (40, 6199632), (45, 5510784), (48, 5166360), (54, 4592320), (60, 4133088), (64, 3874770), (72, 3444240), (80, 3099816), (90, 2755392), (96, 2583180), (108, 2296160), (113, 2194560), (120, 2066544), (127, 1952640), (128, 1937385), (135, 1836928), (144, 1722120), (160, 1549908), (180, 1377696), (192, 1291590), (216, 1148080), (226, 1097280), (240, 1033272), (254, 976320), (270, 918464), (288, 861060), (320, 774954), (339, 731520), (360, 688848), (381, 650880), (384, 645795), (432, 574040), (452, 548640), (480, 516636), (508, 488160), (540, 459232), (565, 438912), (576, 430530), (635, 390528), (640, 387477), (678, 365760), (720, 344424), (762, 325440), (864, 287020), (904, 274320), (960, 258318), (1016, 244080), (1017, 243840), (1080, 229616), (1130, 219456), (1143, 216960), (1152, 215265), (1270, 195264), (1356, 182880), (1440, 172212), (1524, 162720), (1695, 146304), (1728, 143510), (1808, 137160), (1905, 130176), (1920, 129159), (2032, 122040), (2034, 121920), (2160, 114808), (2260, 109728), (2286, 108480), (2540, 97632), (2712, 91440), (2880, 86106), (3048, 81360), (3051, 81280), (3390, 73152), (3429, 72320), (3456, 71755), (3616, 68580), (3810, 65088), (4064, 61020), (4068, 60960), (4320, 57404), (4520, 54864), (4572, 54240), (5080, 48816), (5085, 48768), (5424, 45720), (5715, 43392), (5760, 43053), (6096, 40680), (6102, 40640), (6780, 36576), (6858, 36160), (7232, 34290), (7620, 32544), (8128, 30510), (8136, 30480), (8640, 28702), (9040, 27432), (9144, 27120), (10160, 24408), (10170, 24384), (10848, 22860), (11430, 21696), (12192, 20340), (12204, 20320), (13560, 18288), (13716, 18080), (14351, 17280), (14464, 17145), (15240, 16272), (15255, 16256)]

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