257567040

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:571

約数の個数: 280

約数和(自身を含む): 966276960

約数和(自身を除く): 708709920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 64, 72, 76, 80, 81, 90, 95, 96, 108, 114, 120, 135, 144, 152, 160, 162, 171, 180, 190, 192, 216, 228, 240, 270, 285, 288, 304, 320, 324, 342, 360, 380, 405, 432, 456, 480, 513, 523, 540, 570, 576, 608, 648, 684, 720, 760, 810, 855, 864, 912, 960, 1026, 1046, 1080, 1140, 1216, 1296, 1368, 1440, 1520, 1539, 1569, 1620, 1710, 1728, 1824, 2052, 2092, 2160, 2280, 2565, 2592, 2615, 2736, 2880, 3040, 3078, 3138, 3240, 3420, 3648, 4104, 4184, 4320, 4560, 4707, 5130, 5184, 5230, 5472, 6080, 6156, 6276, 6480, 6840, 7695, 7845, 8208, 8368, 8640, 9120, 9414, 9937, 10260, 10460, 10944, 12312, 12552, 12960, 13680, 14121, 15390, 15690, 16416, 16736, 18240, 18828, 19874, 20520, 20920, 23535, 24624, 25104, 25920, 27360, 28242, 29811, 30780, 31380, 32832, 33472, 37656, 39748, 41040, 41840, 42363, 47070, 49248, 49685, 50208, 54720, 56484, 59622, 61560, 62760, 70605, 75312, 79496, 82080, 83680, 84726, 89433, 94140, 98496, 99370, 100416, 112968, 119244, 123120, 125520, 141210, 149055, 150624, 158992, 164160, 167360, 169452, 178866, 188280, 198740, 211815, 225936, 238488, 246240, 251040, 268299, 282420, 298110, 301248, 317984, 338904, 357732, 376560, 397480, 423630, 447165, 451872, 476976, 492480, 502080, 536598, 564840, 596220, 635968, 677808, 715464, 753120, 794960, 804897, 847260, 894330, 903744, 953952, 1073196, 1129680, 1192440, 1341495, 1355616, 1430928, 1506240, 1589920, 1609794, 1694520, 1788660, 1907904, 2146392, 2259360, 2384880, 2682990, 2711232, 2861856, 3179840, 3219588, 3389040, 3577320, 4024485, 4292784, 4518720, 4769760, 5365980, 5723712, 6439176, 6778080, 7154640, 8048970, 8585568, 9539520, 10731960, 12878352, 13556160, 14309280, 16097940, 17171136, 21463920, 25756704, 28618560, 32195880, 42927840, 51513408, 64391760, 85855680, 128783520, 257567040]

約数ペア:

[(1, 257567040), (2, 128783520), (3, 85855680), (4, 64391760), (5, 51513408), (6, 42927840), (8, 32195880), (9, 28618560), (10, 25756704), (12, 21463920), (15, 17171136), (16, 16097940), (18, 14309280), (19, 13556160), (20, 12878352), (24, 10731960), (27, 9539520), (30, 8585568), (32, 8048970), (36, 7154640), (38, 6778080), (40, 6439176), (45, 5723712), (48, 5365980), (54, 4769760), (57, 4518720), (60, 4292784), (64, 4024485), (72, 3577320), (76, 3389040), (80, 3219588), (81, 3179840), (90, 2861856), (95, 2711232), (96, 2682990), (108, 2384880), (114, 2259360), (120, 2146392), (135, 1907904), (144, 1788660), (152, 1694520), (160, 1609794), (162, 1589920), (171, 1506240), (180, 1430928), (190, 1355616), (192, 1341495), (216, 1192440), (228, 1129680), (240, 1073196), (270, 953952), (285, 903744), (288, 894330), (304, 847260), (320, 804897), (324, 794960), (342, 753120), (360, 715464), (380, 677808), (405, 635968), (432, 596220), (456, 564840), (480, 536598), (513, 502080), (523, 492480), (540, 476976), (570, 451872), (576, 447165), (608, 423630), (648, 397480), (684, 376560), (720, 357732), (760, 338904), (810, 317984), (855, 301248), (864, 298110), (912, 282420), (960, 268299), (1026, 251040), (1046, 246240), (1080, 238488), (1140, 225936), (1216, 211815), (1296, 198740), (1368, 188280), (1440, 178866), (1520, 169452), (1539, 167360), (1569, 164160), (1620, 158992), (1710, 150624), (1728, 149055), (1824, 141210), (2052, 125520), (2092, 123120), (2160, 119244), (2280, 112968), (2565, 100416), (2592, 99370), (2615, 98496), (2736, 94140), (2880, 89433), (3040, 84726), (3078, 83680), (3138, 82080), (3240, 79496), (3420, 75312), (3648, 70605), (4104, 62760), (4184, 61560), (4320, 59622), (4560, 56484), (4707, 54720), (5130, 50208), (5184, 49685), (5230, 49248), (5472, 47070), (6080, 42363), (6156, 41840), (6276, 41040), (6480, 39748), (6840, 37656), (7695, 33472), (7845, 32832), (8208, 31380), (8368, 30780), (8640, 29811), (9120, 28242), (9414, 27360), (9937, 25920), (10260, 25104), (10460, 24624), (10944, 23535), (12312, 20920), (12552, 20520), (12960, 19874), (13680, 18828), (14121, 18240), (15390, 16736), (15690, 16416)]