257213880

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1031}}^1$

素因数の和:1072

約数の個数: 320

約数和(自身を含む): 1078894080

約数和(自身を除く): 821680200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 54, 55, 56, 60, 63, 66, 70, 72, 77, 81, 84, 88, 90, 99, 105, 108, 110, 120, 126, 132, 135, 140, 154, 162, 165, 168, 180, 189, 198, 210, 216, 220, 231, 252, 264, 270, 280, 297, 308, 315, 324, 330, 360, 378, 385, 396, 405, 420, 440, 462, 495, 504, 540, 567, 594, 616, 630, 648, 660, 693, 756, 770, 792, 810, 840, 891, 924, 945, 990, 1031, 1080, 1134, 1155, 1188, 1260, 1320, 1386, 1485, 1512, 1540, 1620, 1782, 1848, 1890, 1980, 2062, 2079, 2268, 2310, 2376, 2520, 2772, 2835, 2970, 3080, 3093, 3240, 3465, 3564, 3780, 3960, 4124, 4158, 4455, 4536, 4620, 5155, 5544, 5670, 5940, 6186, 6237, 6930, 7128, 7217, 7560, 8248, 8316, 8910, 9240, 9279, 10310, 10395, 11340, 11341, 11880, 12372, 12474, 13860, 14434, 15465, 16632, 17820, 18558, 20620, 20790, 21651, 22680, 22682, 24744, 24948, 27720, 27837, 28868, 30930, 31185, 34023, 35640, 36085, 37116, 41240, 41580, 43302, 45364, 46395, 49896, 55674, 56705, 57736, 61860, 62370, 64953, 68046, 72170, 74232, 79387, 83160, 83511, 86604, 90728, 92790, 102069, 108255, 111348, 113410, 123720, 124740, 129906, 136092, 139185, 144340, 158774, 167022, 170115, 173208, 185580, 194859, 204138, 216510, 222696, 226820, 238161, 249480, 259812, 272184, 278370, 288680, 306207, 317548, 324765, 334044, 340230, 371160, 389718, 396935, 408276, 417555, 433020, 453640, 476322, 510345, 519624, 556740, 584577, 612414, 635096, 649530, 668088, 680460, 714483, 779436, 793870, 816552, 835110, 866040, 918621, 952644, 974295, 1020690, 1113480, 1169154, 1190805, 1224828, 1299060, 1360920, 1428966, 1531035, 1558872, 1587740, 1670220, 1837242, 1905288, 1948590, 2041380, 2143449, 2338308, 2381610, 2449656, 2598120, 2857932, 2922885, 3062070, 3175480, 3340440, 3572415, 3674484, 3897180, 4082760, 4286898, 4593105, 4676616, 4763220, 5715864, 5845770, 6124140, 6430347, 7144830, 7348968, 7794360, 8573796, 9186210, 9526440, 10717245, 11691540, 12248280, 12860694, 14289660, 17147592, 18372420, 21434490, 23383080, 25721388, 28579320, 32151735, 36744840, 42868980, 51442776, 64303470, 85737960, 128606940, 257213880]

約数ペア:

[(1, 257213880), (2, 128606940), (3, 85737960), (4, 64303470), (5, 51442776), (6, 42868980), (7, 36744840), (8, 32151735), (9, 28579320), (10, 25721388), (11, 23383080), (12, 21434490), (14, 18372420), (15, 17147592), (18, 14289660), (20, 12860694), (21, 12248280), (22, 11691540), (24, 10717245), (27, 9526440), (28, 9186210), (30, 8573796), (33, 7794360), (35, 7348968), (36, 7144830), (40, 6430347), (42, 6124140), (44, 5845770), (45, 5715864), (54, 4763220), (55, 4676616), (56, 4593105), (60, 4286898), (63, 4082760), (66, 3897180), (70, 3674484), (72, 3572415), (77, 3340440), (81, 3175480), (84, 3062070), (88, 2922885), (90, 2857932), (99, 2598120), (105, 2449656), (108, 2381610), (110, 2338308), (120, 2143449), (126, 2041380), (132, 1948590), (135, 1905288), (140, 1837242), (154, 1670220), (162, 1587740), (165, 1558872), (168, 1531035), (180, 1428966), (189, 1360920), (198, 1299060), (210, 1224828), (216, 1190805), (220, 1169154), (231, 1113480), (252, 1020690), (264, 974295), (270, 952644), (280, 918621), (297, 866040), (308, 835110), (315, 816552), (324, 793870), (330, 779436), (360, 714483), (378, 680460), (385, 668088), (396, 649530), (405, 635096), (420, 612414), (440, 584577), (462, 556740), (495, 519624), (504, 510345), (540, 476322), (567, 453640), (594, 433020), (616, 417555), (630, 408276), (648, 396935), (660, 389718), (693, 371160), (756, 340230), (770, 334044), (792, 324765), (810, 317548), (840, 306207), (891, 288680), (924, 278370), (945, 272184), (990, 259812), (1031, 249480), (1080, 238161), (1134, 226820), (1155, 222696), (1188, 216510), (1260, 204138), (1320, 194859), (1386, 185580), (1485, 173208), (1512, 170115), (1540, 167022), (1620, 158774), (1782, 144340), (1848, 139185), (1890, 136092), (1980, 129906), (2062, 124740), (2079, 123720), (2268, 113410), (2310, 111348), (2376, 108255), (2520, 102069), (2772, 92790), (2835, 90728), (2970, 86604), (3080, 83511), (3093, 83160), (3240, 79387), (3465, 74232), (3564, 72170), (3780, 68046), (3960, 64953), (4124, 62370), (4158, 61860), (4455, 57736), (4536, 56705), (4620, 55674), (5155, 49896), (5544, 46395), (5670, 45364), (5940, 43302), (6186, 41580), (6237, 41240), (6930, 37116), (7128, 36085), (7217, 35640), (7560, 34023), (8248, 31185), (8316, 30930), (8910, 28868), (9240, 27837), (9279, 27720), (10310, 24948), (10395, 24744), (11340, 22682), (11341, 22680), (11880, 21651), (12372, 20790), (12474, 20620), (13860, 18558), (14434, 17820), (15465, 16632)]