20780723880

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{20983}}^1$

素因数の和:21141

約数の個数: 256

約数和(自身を含む): 79772774400

約数和(自身を除く): 58992050520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 131, 135, 140, 168, 180, 189, 210, 216, 252, 262, 270, 280, 315, 360, 378, 393, 420, 504, 524, 540, 630, 655, 756, 786, 840, 917, 945, 1048, 1080, 1179, 1260, 1310, 1512, 1572, 1834, 1890, 1965, 2358, 2520, 2620, 2751, 3144, 3537, 3668, 3780, 3930, 4585, 4716, 5240, 5502, 5895, 7074, 7336, 7560, 7860, 8253, 9170, 9432, 11004, 11790, 13755, 14148, 15720, 16506, 17685, 18340, 20983, 22008, 23580, 24759, 27510, 28296, 33012, 35370, 36680, 41265, 41966, 47160, 49518, 55020, 62949, 66024, 70740, 82530, 83932, 99036, 104915, 110040, 123795, 125898, 141480, 146881, 165060, 167864, 188847, 198072, 209830, 247590, 251796, 293762, 314745, 330120, 377694, 419660, 440643, 495180, 503592, 566541, 587524, 629490, 734405, 755388, 839320, 881286, 944235, 990360, 1133082, 1175048, 1258980, 1321929, 1468810, 1510776, 1762572, 1888470, 2203215, 2266164, 2517960, 2643858, 2748773, 2832705, 2937620, 3525144, 3776940, 3965787, 4406430, 4532328, 5287716, 5497546, 5665410, 5875240, 6609645, 7553880, 7931574, 8246319, 8812860, 10575432, 10995092, 11330820, 13219290, 13743865, 15863148, 16492638, 17625720, 19241411, 19828935, 21990184, 22661640, 24738957, 26438580, 27487730, 31726296, 32985276, 38482822, 39657870, 41231595, 49477914, 52877160, 54975460, 57724233, 65970552, 74216871, 76965644, 79315740, 82463190, 96207055, 98955828, 109950920, 115448466, 123694785, 148433742, 153931288, 158631480, 164926380, 173172699, 192414110, 197911656, 230896932, 247389570, 288621165, 296867484, 329852760, 346345398, 371084355, 384828220, 461793864, 494779140, 519518097, 577242330, 593734968, 692690796, 742168710, 769656440, 865863495, 989558280, 1039036194, 1154484660, 1385381592, 1484337420, 1731726990, 2078072388, 2308969320, 2597590485, 2968674840, 3463453980, 4156144776, 5195180970, 6926907960, 10390361940, 20780723880]

約数ペア:

[(1, 20780723880), (2, 10390361940), (3, 6926907960), (4, 5195180970), (5, 4156144776), (6, 3463453980), (7, 2968674840), (8, 2597590485), (9, 2308969320), (10, 2078072388), (12, 1731726990), (14, 1484337420), (15, 1385381592), (18, 1154484660), (20, 1039036194), (21, 989558280), (24, 865863495), (27, 769656440), (28, 742168710), (30, 692690796), (35, 593734968), (36, 577242330), (40, 519518097), (42, 494779140), (45, 461793864), (54, 384828220), (56, 371084355), (60, 346345398), (63, 329852760), (70, 296867484), (72, 288621165), (84, 247389570), (90, 230896932), (105, 197911656), (108, 192414110), (120, 173172699), (126, 164926380), (131, 158631480), (135, 153931288), (140, 148433742), (168, 123694785), (180, 115448466), (189, 109950920), (210, 98955828), (216, 96207055), (252, 82463190), (262, 79315740), (270, 76965644), (280, 74216871), (315, 65970552), (360, 57724233), (378, 54975460), (393, 52877160), (420, 49477914), (504, 41231595), (524, 39657870), (540, 38482822), (630, 32985276), (655, 31726296), (756, 27487730), (786, 26438580), (840, 24738957), (917, 22661640), (945, 21990184), (1048, 19828935), (1080, 19241411), (1179, 17625720), (1260, 16492638), (1310, 15863148), (1512, 13743865), (1572, 13219290), (1834, 11330820), (1890, 10995092), (1965, 10575432), (2358, 8812860), (2520, 8246319), (2620, 7931574), (2751, 7553880), (3144, 6609645), (3537, 5875240), (3668, 5665410), (3780, 5497546), (3930, 5287716), (4585, 4532328), (4716, 4406430), (5240, 3965787), (5502, 3776940), (5895, 3525144), (7074, 2937620), (7336, 2832705), (7560, 2748773), (7860, 2643858), (8253, 2517960), (9170, 2266164), (9432, 2203215), (11004, 1888470), (11790, 1762572), (13755, 1510776), (14148, 1468810), (15720, 1321929), (16506, 1258980), (17685, 1175048), (18340, 1133082), (20983, 990360), (22008, 944235), (23580, 881286), (24759, 839320), (27510, 755388), (28296, 734405), (33012, 629490), (35370, 587524), (36680, 566541), (41265, 503592), (41966, 495180), (47160, 440643), (49518, 419660), (55020, 377694), (62949, 330120), (66024, 314745), (70740, 293762), (82530, 251796), (83932, 247590), (99036, 209830), (104915, 198072), (110040, 188847), (123795, 167864), (125898, 165060), (141480, 146881)]