261530640

素因数分解:

$2^4\times 3^3\times 5^1\times 7^3\times {\mathrm{353}}^1$

素因数の和:396

約数の個数: 320

約数和(自身を含む): 1053504000

約数和(自身を除く): 791973360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 168, 180, 189, 196, 210, 216, 240, 245, 252, 270, 280, 294, 315, 336, 343, 353, 360, 378, 392, 420, 432, 441, 490, 504, 540, 560, 588, 630, 686, 706, 720, 735, 756, 784, 840, 882, 945, 980, 1008, 1029, 1059, 1080, 1176, 1260, 1323, 1372, 1412, 1470, 1512, 1680, 1715, 1764, 1765, 1890, 1960, 2058, 2118, 2160, 2205, 2352, 2471, 2520, 2646, 2744, 2824, 2940, 3024, 3087, 3177, 3430, 3528, 3530, 3780, 3920, 4116, 4236, 4410, 4942, 5040, 5145, 5292, 5295, 5488, 5648, 5880, 6174, 6354, 6615, 6860, 7056, 7060, 7413, 7560, 8232, 8472, 8820, 9261, 9531, 9884, 10290, 10584, 10590, 11760, 12348, 12355, 12708, 13230, 13720, 14120, 14826, 15120, 15435, 15885, 16464, 16944, 17297, 17640, 18522, 19062, 19768, 20580, 21168, 21180, 22239, 24696, 24710, 25416, 26460, 27440, 28240, 29652, 30870, 31770, 34594, 35280, 37044, 37065, 38124, 39536, 41160, 42360, 44478, 46305, 47655, 49392, 49420, 50832, 51891, 52920, 59304, 61740, 63540, 66717, 69188, 74088, 74130, 76248, 82320, 84720, 86485, 88956, 92610, 95310, 98840, 103782, 105840, 111195, 118608, 121079, 123480, 127080, 133434, 138376, 148176, 148260, 152496, 155673, 172970, 177912, 185220, 190620, 197680, 207564, 222390, 242158, 246960, 254160, 259455, 266868, 276752, 296520, 311346, 333585, 345940, 355824, 363237, 370440, 381240, 415128, 444780, 467019, 484316, 518910, 533736, 593040, 605395, 622692, 667170, 691880, 726474, 740880, 762480, 778365, 830256, 889560, 934038, 968632, 1037820, 1067472, 1089711, 1210790, 1245384, 1334340, 1383760, 1452948, 1556730, 1779120, 1816185, 1868076, 1937264, 2075640, 2179422, 2335095, 2421580, 2490768, 2668680, 2905896, 3113460, 3269133, 3632370, 3736152, 4151280, 4358844, 4670190, 4843160, 5337360, 5448555, 5811792, 6226920, 6538266, 7264740, 7472304, 8717688, 9340380, 9686320, 10897110, 12453840, 13076532, 14529480, 16345665, 17435376, 18680760, 21794220, 26153064, 29058960, 32691330, 37361520, 43588440, 52306128, 65382660, 87176880, 130765320, 261530640]

約数ペア:

[(1, 261530640), (2, 130765320), (3, 87176880), (4, 65382660), (5, 52306128), (6, 43588440), (7, 37361520), (8, 32691330), (9, 29058960), (10, 26153064), (12, 21794220), (14, 18680760), (15, 17435376), (16, 16345665), (18, 14529480), (20, 13076532), (21, 12453840), (24, 10897110), (27, 9686320), (28, 9340380), (30, 8717688), (35, 7472304), (36, 7264740), (40, 6538266), (42, 6226920), (45, 5811792), (48, 5448555), (49, 5337360), (54, 4843160), (56, 4670190), (60, 4358844), (63, 4151280), (70, 3736152), (72, 3632370), (80, 3269133), (84, 3113460), (90, 2905896), (98, 2668680), (105, 2490768), (108, 2421580), (112, 2335095), (120, 2179422), (126, 2075640), (135, 1937264), (140, 1868076), (144, 1816185), (147, 1779120), (168, 1556730), (180, 1452948), (189, 1383760), (196, 1334340), (210, 1245384), (216, 1210790), (240, 1089711), (245, 1067472), (252, 1037820), (270, 968632), (280, 934038), (294, 889560), (315, 830256), (336, 778365), (343, 762480), (353, 740880), (360, 726474), (378, 691880), (392, 667170), (420, 622692), (432, 605395), (441, 593040), (490, 533736), (504, 518910), (540, 484316), (560, 467019), (588, 444780), (630, 415128), (686, 381240), (706, 370440), (720, 363237), (735, 355824), (756, 345940), (784, 333585), (840, 311346), (882, 296520), (945, 276752), (980, 266868), (1008, 259455), (1029, 254160), (1059, 246960), (1080, 242158), (1176, 222390), (1260, 207564), (1323, 197680), (1372, 190620), (1412, 185220), (1470, 177912), (1512, 172970), (1680, 155673), (1715, 152496), (1764, 148260), (1765, 148176), (1890, 138376), (1960, 133434), (2058, 127080), (2118, 123480), (2160, 121079), (2205, 118608), (2352, 111195), (2471, 105840), (2520, 103782), (2646, 98840), (2744, 95310), (2824, 92610), (2940, 88956), (3024, 86485), (3087, 84720), (3177, 82320), (3430, 76248), (3528, 74130), (3530, 74088), (3780, 69188), (3920, 66717), (4116, 63540), (4236, 61740), (4410, 59304), (4942, 52920), (5040, 51891), (5145, 50832), (5292, 49420), (5295, 49392), (5488, 47655), (5648, 46305), (5880, 44478), (6174, 42360), (6354, 41160), (6615, 39536), (6860, 38124), (7056, 37065), (7060, 37044), (7413, 35280), (7560, 34594), (8232, 31770), (8472, 30870), (8820, 29652), (9261, 28240), (9531, 27440), (9884, 26460), (10290, 25416), (10584, 24710), (10590, 24696), (11760, 22239), (12348, 21180), (12355, 21168), (12708, 20580), (13230, 19768), (13720, 19062), (14120, 18522), (14826, 17640), (15120, 17297), (15435, 16944), (15885, 16464)]