257813280

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:398

約数の個数: 288

約数和(自身を含む): 963144000

約数和(自身を除く): 705330720

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, 72, 76, 80, 81, 90, 95, 96, 108, 114, 120, 135, 144, 152, 160, 162, 171, 180, 190, 216, 228, 240, 243, 270, 285, 288, 304, 324, 342, 349, 360, 380, 405, 432, 456, 480, 486, 513, 540, 570, 608, 648, 684, 698, 720, 760, 810, 855, 864, 912, 972, 1026, 1047, 1080, 1140, 1215, 1296, 1368, 1396, 1440, 1520, 1539, 1620, 1710, 1745, 1824, 1944, 2052, 2094, 2160, 2280, 2430, 2565, 2592, 2736, 2792, 3040, 3078, 3141, 3240, 3420, 3490, 3888, 4104, 4188, 4320, 4560, 4617, 4860, 5130, 5235, 5472, 5584, 6156, 6282, 6480, 6631, 6840, 6980, 7695, 7776, 8208, 8376, 9120, 9234, 9423, 9720, 10260, 10470, 11168, 12312, 12564, 12960, 13262, 13680, 13960, 15390, 15705, 16416, 16752, 18468, 18846, 19440, 19893, 20520, 20940, 23085, 24624, 25128, 26524, 27360, 27920, 28269, 30780, 31410, 33155, 33504, 36936, 37692, 38880, 39786, 41040, 41880, 46170, 47115, 49248, 50256, 53048, 55840, 56538, 59679, 61560, 62820, 66310, 73872, 75384, 79572, 82080, 83760, 84807, 92340, 94230, 99465, 100512, 106096, 113076, 119358, 123120, 125640, 132620, 141345, 147744, 150768, 159144, 167520, 169614, 179037, 184680, 188460, 198930, 212192, 226152, 238716, 246240, 251280, 265240, 282690, 298395, 301536, 318288, 339228, 358074, 369360, 376920, 397860, 424035, 452304, 477432, 502560, 530480, 537111, 565380, 596790, 636576, 678456, 716148, 738720, 753840, 795720, 848070, 895185, 904608, 954864, 1060960, 1074222, 1130760, 1193580, 1356912, 1432296, 1507680, 1591440, 1611333, 1696140, 1790370, 1909728, 2148444, 2261520, 2387160, 2685555, 2713824, 2864592, 3182880, 3222666, 3392280, 3580740, 4296888, 4523040, 4774320, 5371110, 5729184, 6445332, 6784560, 7161480, 8056665, 8593776, 9548640, 10742220, 12890664, 13569120, 14322960, 16113330, 17187552, 21484440, 25781328, 28645920, 32226660, 42968880, 51562656, 64453320, 85937760, 128906640, 257813280]

約数ペア:

[(1, 257813280), (2, 128906640), (3, 85937760), (4, 64453320), (5, 51562656), (6, 42968880), (8, 32226660), (9, 28645920), (10, 25781328), (12, 21484440), (15, 17187552), (16, 16113330), (18, 14322960), (19, 13569120), (20, 12890664), (24, 10742220), (27, 9548640), (30, 8593776), (32, 8056665), (36, 7161480), (38, 6784560), (40, 6445332), (45, 5729184), (48, 5371110), (54, 4774320), (57, 4523040), (60, 4296888), (72, 3580740), (76, 3392280), (80, 3222666), (81, 3182880), (90, 2864592), (95, 2713824), (96, 2685555), (108, 2387160), (114, 2261520), (120, 2148444), (135, 1909728), (144, 1790370), (152, 1696140), (160, 1611333), (162, 1591440), (171, 1507680), (180, 1432296), (190, 1356912), (216, 1193580), (228, 1130760), (240, 1074222), (243, 1060960), (270, 954864), (285, 904608), (288, 895185), (304, 848070), (324, 795720), (342, 753840), (349, 738720), (360, 716148), (380, 678456), (405, 636576), (432, 596790), (456, 565380), (480, 537111), (486, 530480), (513, 502560), (540, 477432), (570, 452304), (608, 424035), (648, 397860), (684, 376920), (698, 369360), (720, 358074), (760, 339228), (810, 318288), (855, 301536), (864, 298395), (912, 282690), (972, 265240), (1026, 251280), (1047, 246240), (1080, 238716), (1140, 226152), (1215, 212192), (1296, 198930), (1368, 188460), (1396, 184680), (1440, 179037), (1520, 169614), (1539, 167520), (1620, 159144), (1710, 150768), (1745, 147744), (1824, 141345), (1944, 132620), (2052, 125640), (2094, 123120), (2160, 119358), (2280, 113076), (2430, 106096), (2565, 100512), (2592, 99465), (2736, 94230), (2792, 92340), (3040, 84807), (3078, 83760), (3141, 82080), (3240, 79572), (3420, 75384), (3490, 73872), (3888, 66310), (4104, 62820), (4188, 61560), (4320, 59679), (4560, 56538), (4617, 55840), (4860, 53048), (5130, 50256), (5235, 49248), (5472, 47115), (5584, 46170), (6156, 41880), (6282, 41040), (6480, 39786), (6631, 38880), (6840, 37692), (6980, 36936), (7695, 33504), (7776, 33155), (8208, 31410), (8376, 30780), (9120, 28269), (9234, 27920), (9423, 27360), (9720, 26524), (10260, 25128), (10470, 24624), (11168, 23085), (12312, 20940), (12564, 20520), (12960, 19893), (13262, 19440), (13680, 18846), (13960, 18468), (15390, 16752), (15705, 16416)]