261607968

素因数分解:

$2^5\times 3^5\times {\mathrm{17}}^1\times {\mathrm{1979}}^1$

素因数の和:2021

約数の個数: 144

約数和(自身を含む): 817296480

約数和(自身を除く): 555688512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 32, 34, 36, 48, 51, 54, 68, 72, 81, 96, 102, 108, 136, 144, 153, 162, 204, 216, 243, 272, 288, 306, 324, 408, 432, 459, 486, 544, 612, 648, 816, 864, 918, 972, 1224, 1296, 1377, 1632, 1836, 1944, 1979, 2448, 2592, 2754, 3672, 3888, 3958, 4131, 4896, 5508, 5937, 7344, 7776, 7916, 8262, 11016, 11874, 14688, 15832, 16524, 17811, 22032, 23748, 31664, 33048, 33643, 35622, 44064, 47496, 53433, 63328, 66096, 67286, 71244, 94992, 100929, 106866, 132192, 134572, 142488, 160299, 189984, 201858, 213732, 269144, 284976, 302787, 320598, 403716, 427464, 480897, 538288, 569952, 605574, 641196, 807432, 854928, 908361, 961794, 1076576, 1211148, 1282392, 1614864, 1709856, 1816722, 1923588, 2422296, 2564784, 2725083, 3229728, 3633444, 3847176, 4844592, 5129568, 5450166, 7266888, 7694352, 8175249, 9689184, 10900332, 14533776, 15388704, 16350498, 21800664, 29067552, 32700996, 43601328, 65401992, 87202656, 130803984, 261607968]

約数ペア:

[(1, 261607968), (2, 130803984), (3, 87202656), (4, 65401992), (6, 43601328), (8, 32700996), (9, 29067552), (12, 21800664), (16, 16350498), (17, 15388704), (18, 14533776), (24, 10900332), (27, 9689184), (32, 8175249), (34, 7694352), (36, 7266888), (48, 5450166), (51, 5129568), (54, 4844592), (68, 3847176), (72, 3633444), (81, 3229728), (96, 2725083), (102, 2564784), (108, 2422296), (136, 1923588), (144, 1816722), (153, 1709856), (162, 1614864), (204, 1282392), (216, 1211148), (243, 1076576), (272, 961794), (288, 908361), (306, 854928), (324, 807432), (408, 641196), (432, 605574), (459, 569952), (486, 538288), (544, 480897), (612, 427464), (648, 403716), (816, 320598), (864, 302787), (918, 284976), (972, 269144), (1224, 213732), (1296, 201858), (1377, 189984), (1632, 160299), (1836, 142488), (1944, 134572), (1979, 132192), (2448, 106866), (2592, 100929), (2754, 94992), (3672, 71244), (3888, 67286), (3958, 66096), (4131, 63328), (4896, 53433), (5508, 47496), (5937, 44064), (7344, 35622), (7776, 33643), (7916, 33048), (8262, 31664), (11016, 23748), (11874, 22032), (14688, 17811), (15832, 16524)]