217947240

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:381

約数の個数: 256

約数和(自身を含む): 840499200

約数和(自身を除く): 622551960

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, 127, 135, 140, 168, 180, 189, 210, 216, 227, 252, 254, 270, 280, 315, 360, 378, 381, 420, 454, 504, 508, 540, 630, 635, 681, 756, 762, 840, 889, 908, 945, 1016, 1080, 1135, 1143, 1260, 1270, 1362, 1512, 1524, 1589, 1778, 1816, 1890, 1905, 2043, 2270, 2286, 2520, 2540, 2667, 2724, 3048, 3178, 3405, 3429, 3556, 3780, 3810, 4086, 4445, 4540, 4572, 4767, 5080, 5334, 5448, 5715, 6129, 6356, 6810, 6858, 7112, 7560, 7620, 7945, 8001, 8172, 8890, 9080, 9144, 9534, 10215, 10668, 11430, 12258, 12712, 13335, 13620, 13716, 14301, 15240, 15890, 16002, 16344, 17145, 17780, 19068, 20430, 21336, 22860, 23835, 24003, 24516, 26670, 27240, 27432, 28602, 28829, 30645, 31780, 32004, 34290, 35560, 38136, 40005, 40860, 42903, 45720, 47670, 48006, 49032, 53340, 57204, 57658, 61290, 63560, 64008, 68580, 71505, 80010, 81720, 85806, 86487, 95340, 96012, 106680, 114408, 115316, 120015, 122580, 137160, 143010, 144145, 160020, 171612, 172974, 190680, 192024, 201803, 214515, 230632, 240030, 245160, 259461, 286020, 288290, 320040, 343224, 345948, 403606, 429030, 432435, 480060, 518922, 572040, 576580, 605409, 691896, 778383, 807212, 858060, 864870, 960120, 1009015, 1037844, 1153160, 1210818, 1297305, 1556766, 1614424, 1716120, 1729740, 1816227, 2018030, 2075688, 2421636, 2594610, 3027045, 3113532, 3459480, 3632454, 3891915, 4036060, 4843272, 5189220, 5448681, 6054090, 6227064, 7264908, 7783830, 8072120, 9081135, 10378440, 10897362, 12108180, 14529816, 15567660, 18162270, 21794724, 24216360, 27243405, 31135320, 36324540, 43589448, 54486810, 72649080, 108973620, 217947240]

約数ペア:

[(1, 217947240), (2, 108973620), (3, 72649080), (4, 54486810), (5, 43589448), (6, 36324540), (7, 31135320), (8, 27243405), (9, 24216360), (10, 21794724), (12, 18162270), (14, 15567660), (15, 14529816), (18, 12108180), (20, 10897362), (21, 10378440), (24, 9081135), (27, 8072120), (28, 7783830), (30, 7264908), (35, 6227064), (36, 6054090), (40, 5448681), (42, 5189220), (45, 4843272), (54, 4036060), (56, 3891915), (60, 3632454), (63, 3459480), (70, 3113532), (72, 3027045), (84, 2594610), (90, 2421636), (105, 2075688), (108, 2018030), (120, 1816227), (126, 1729740), (127, 1716120), (135, 1614424), (140, 1556766), (168, 1297305), (180, 1210818), (189, 1153160), (210, 1037844), (216, 1009015), (227, 960120), (252, 864870), (254, 858060), (270, 807212), (280, 778383), (315, 691896), (360, 605409), (378, 576580), (381, 572040), (420, 518922), (454, 480060), (504, 432435), (508, 429030), (540, 403606), (630, 345948), (635, 343224), (681, 320040), (756, 288290), (762, 286020), (840, 259461), (889, 245160), (908, 240030), (945, 230632), (1016, 214515), (1080, 201803), (1135, 192024), (1143, 190680), (1260, 172974), (1270, 171612), (1362, 160020), (1512, 144145), (1524, 143010), (1589, 137160), (1778, 122580), (1816, 120015), (1890, 115316), (1905, 114408), (2043, 106680), (2270, 96012), (2286, 95340), (2520, 86487), (2540, 85806), (2667, 81720), (2724, 80010), (3048, 71505), (3178, 68580), (3405, 64008), (3429, 63560), (3556, 61290), (3780, 57658), (3810, 57204), (4086, 53340), (4445, 49032), (4540, 48006), (4572, 47670), (4767, 45720), (5080, 42903), (5334, 40860), (5448, 40005), (5715, 38136), (6129, 35560), (6356, 34290), (6810, 32004), (6858, 31780), (7112, 30645), (7560, 28829), (7620, 28602), (7945, 27432), (8001, 27240), (8172, 26670), (8890, 24516), (9080, 24003), (9144, 23835), (9534, 22860), (10215, 21336), (10668, 20430), (11430, 19068), (12258, 17780), (12712, 17145), (13335, 16344), (13620, 16002), (13716, 15890), (14301, 15240)]