256298700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:213

約数の個数: 216

約数和(自身を含む): 882610176

約数和(自身を除く): 626311476

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 31, 35, 42, 50, 60, 62, 70, 75, 84, 93, 100, 105, 124, 127, 140, 150, 155, 175, 186, 210, 217, 254, 300, 310, 350, 372, 381, 420, 434, 465, 508, 525, 620, 635, 651, 700, 762, 775, 868, 889, 930, 961, 1050, 1085, 1270, 1302, 1524, 1550, 1778, 1860, 1905, 1922, 2100, 2170, 2325, 2540, 2604, 2667, 2883, 3100, 3175, 3255, 3556, 3810, 3844, 3937, 4340, 4445, 4650, 4805, 5334, 5425, 5766, 6350, 6510, 6727, 7620, 7874, 8890, 9300, 9525, 9610, 10668, 10850, 11532, 11811, 12700, 13020, 13335, 13454, 14415, 15748, 16275, 17780, 19050, 19220, 19685, 20181, 21700, 22225, 23622, 24025, 26670, 26908, 27559, 28830, 32550, 33635, 38100, 39370, 40362, 44450, 47244, 48050, 53340, 55118, 57660, 59055, 65100, 66675, 67270, 72075, 78740, 80724, 82677, 88900, 96100, 98425, 100905, 110236, 118110, 122047, 133350, 134540, 137795, 144150, 165354, 168175, 196850, 201810, 236220, 244094, 266700, 275590, 288300, 295275, 330708, 336350, 366141, 393700, 403620, 413385, 488188, 504525, 551180, 590550, 610235, 672700, 688975, 732282, 826770, 854329, 1009050, 1181100, 1220470, 1377950, 1464564, 1653540, 1708658, 1830705, 2018100, 2066925, 2440940, 2562987, 2755900, 3051175, 3417316, 3661410, 4133850, 4271645, 5125974, 6102350, 7322820, 8267700, 8543290, 9153525, 10251948, 12204700, 12814935, 17086580, 18307050, 21358225, 25629870, 36614100, 42716450, 51259740, 64074675, 85432900, 128149350, 256298700]

約数ペア:

[(1, 256298700), (2, 128149350), (3, 85432900), (4, 64074675), (5, 51259740), (6, 42716450), (7, 36614100), (10, 25629870), (12, 21358225), (14, 18307050), (15, 17086580), (20, 12814935), (21, 12204700), (25, 10251948), (28, 9153525), (30, 8543290), (31, 8267700), (35, 7322820), (42, 6102350), (50, 5125974), (60, 4271645), (62, 4133850), (70, 3661410), (75, 3417316), (84, 3051175), (93, 2755900), (100, 2562987), (105, 2440940), (124, 2066925), (127, 2018100), (140, 1830705), (150, 1708658), (155, 1653540), (175, 1464564), (186, 1377950), (210, 1220470), (217, 1181100), (254, 1009050), (300, 854329), (310, 826770), (350, 732282), (372, 688975), (381, 672700), (420, 610235), (434, 590550), (465, 551180), (508, 504525), (525, 488188), (620, 413385), (635, 403620), (651, 393700), (700, 366141), (762, 336350), (775, 330708), (868, 295275), (889, 288300), (930, 275590), (961, 266700), (1050, 244094), (1085, 236220), (1270, 201810), (1302, 196850), (1524, 168175), (1550, 165354), (1778, 144150), (1860, 137795), (1905, 134540), (1922, 133350), (2100, 122047), (2170, 118110), (2325, 110236), (2540, 100905), (2604, 98425), (2667, 96100), (2883, 88900), (3100, 82677), (3175, 80724), (3255, 78740), (3556, 72075), (3810, 67270), (3844, 66675), (3937, 65100), (4340, 59055), (4445, 57660), (4650, 55118), (4805, 53340), (5334, 48050), (5425, 47244), (5766, 44450), (6350, 40362), (6510, 39370), (6727, 38100), (7620, 33635), (7874, 32550), (8890, 28830), (9300, 27559), (9525, 26908), (9610, 26670), (10668, 24025), (10850, 23622), (11532, 22225), (11811, 21700), (12700, 20181), (13020, 19685), (13335, 19220), (13454, 19050), (14415, 17780), (15748, 16275)]