257117520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{337}}^1$

素因数の和:398

約数の個数: 240

約数和(自身を含む): 926422848

約数和(自身を除く): 669305328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 33, 34, 40, 44, 48, 51, 55, 60, 66, 68, 80, 85, 88, 102, 110, 120, 132, 136, 165, 170, 176, 187, 204, 220, 240, 255, 264, 272, 289, 330, 337, 340, 374, 408, 440, 510, 528, 561, 578, 660, 674, 680, 748, 816, 867, 880, 935, 1011, 1020, 1122, 1156, 1320, 1348, 1360, 1445, 1496, 1685, 1734, 1870, 2022, 2040, 2244, 2312, 2640, 2696, 2805, 2890, 2992, 3179, 3370, 3468, 3707, 3740, 4044, 4080, 4335, 4488, 4624, 5055, 5392, 5610, 5729, 5780, 6358, 6740, 6936, 7414, 7480, 8088, 8670, 8976, 9537, 10110, 11121, 11220, 11458, 11560, 12716, 13480, 13872, 14828, 14960, 15895, 16176, 17187, 17340, 18535, 19074, 20220, 22242, 22440, 22916, 23120, 25432, 26960, 28645, 29656, 31790, 34374, 34680, 37070, 38148, 40440, 44484, 44880, 45832, 47685, 50864, 55605, 57290, 59312, 63019, 63580, 68748, 69360, 74140, 76296, 80880, 85935, 88968, 91664, 95370, 97393, 111210, 114580, 126038, 127160, 137496, 148280, 152592, 171870, 177936, 189057, 190740, 194786, 222420, 229160, 252076, 254320, 274992, 292179, 296560, 315095, 343740, 378114, 381480, 389572, 444840, 458320, 486965, 504152, 584358, 630190, 687480, 756228, 762960, 779144, 889680, 945285, 973930, 1008304, 1071323, 1168716, 1260380, 1374960, 1460895, 1512456, 1558288, 1890570, 1947860, 2142646, 2337432, 2520760, 2921790, 3024912, 3213969, 3781140, 3895720, 4285292, 4674864, 5041520, 5356615, 5843580, 6427938, 7562280, 7791440, 8570584, 10713230, 11687160, 12855876, 15124560, 16069845, 17141168, 21426460, 23374320, 25711752, 32139690, 42852920, 51423504, 64279380, 85705840, 128558760, 257117520]

約数ペア:

[(1, 257117520), (2, 128558760), (3, 85705840), (4, 64279380), (5, 51423504), (6, 42852920), (8, 32139690), (10, 25711752), (11, 23374320), (12, 21426460), (15, 17141168), (16, 16069845), (17, 15124560), (20, 12855876), (22, 11687160), (24, 10713230), (30, 8570584), (33, 7791440), (34, 7562280), (40, 6427938), (44, 5843580), (48, 5356615), (51, 5041520), (55, 4674864), (60, 4285292), (66, 3895720), (68, 3781140), (80, 3213969), (85, 3024912), (88, 2921790), (102, 2520760), (110, 2337432), (120, 2142646), (132, 1947860), (136, 1890570), (165, 1558288), (170, 1512456), (176, 1460895), (187, 1374960), (204, 1260380), (220, 1168716), (240, 1071323), (255, 1008304), (264, 973930), (272, 945285), (289, 889680), (330, 779144), (337, 762960), (340, 756228), (374, 687480), (408, 630190), (440, 584358), (510, 504152), (528, 486965), (561, 458320), (578, 444840), (660, 389572), (674, 381480), (680, 378114), (748, 343740), (816, 315095), (867, 296560), (880, 292179), (935, 274992), (1011, 254320), (1020, 252076), (1122, 229160), (1156, 222420), (1320, 194786), (1348, 190740), (1360, 189057), (1445, 177936), (1496, 171870), (1685, 152592), (1734, 148280), (1870, 137496), (2022, 127160), (2040, 126038), (2244, 114580), (2312, 111210), (2640, 97393), (2696, 95370), (2805, 91664), (2890, 88968), (2992, 85935), (3179, 80880), (3370, 76296), (3468, 74140), (3707, 69360), (3740, 68748), (4044, 63580), (4080, 63019), (4335, 59312), (4488, 57290), (4624, 55605), (5055, 50864), (5392, 47685), (5610, 45832), (5729, 44880), (5780, 44484), (6358, 40440), (6740, 38148), (6936, 37070), (7414, 34680), (7480, 34374), (8088, 31790), (8670, 29656), (8976, 28645), (9537, 26960), (10110, 25432), (11121, 23120), (11220, 22916), (11458, 22440), (11560, 22242), (12716, 20220), (13480, 19074), (13872, 18535), (14828, 17340), (14960, 17187), (15895, 16176)]