638419968

素因数分解:

$2^{10}\times 3^4\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:254

約数の個数: 220

約数和(自身を含む): 1961681040

約数和(自身を除く): 1323261072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 43, 48, 54, 64, 72, 81, 86, 96, 108, 128, 129, 144, 162, 172, 179, 192, 216, 256, 258, 288, 324, 344, 358, 384, 387, 432, 512, 516, 537, 576, 648, 688, 716, 768, 774, 864, 1024, 1032, 1074, 1152, 1161, 1296, 1376, 1432, 1536, 1548, 1611, 1728, 2064, 2148, 2304, 2322, 2592, 2752, 2864, 3072, 3096, 3222, 3456, 3483, 4128, 4296, 4608, 4644, 4833, 5184, 5504, 5728, 6192, 6444, 6912, 6966, 7697, 8256, 8592, 9216, 9288, 9666, 10368, 11008, 11456, 12384, 12888, 13824, 13932, 14499, 15394, 16512, 17184, 18576, 19332, 20736, 22016, 22912, 23091, 24768, 25776, 27648, 27864, 28998, 30788, 33024, 34368, 37152, 38664, 41472, 44032, 45824, 46182, 49536, 51552, 55728, 57996, 61576, 66048, 68736, 69273, 74304, 77328, 82944, 91648, 92364, 99072, 103104, 111456, 115992, 123152, 132096, 137472, 138546, 148608, 154656, 183296, 184728, 198144, 206208, 207819, 222912, 231984, 246304, 274944, 277092, 297216, 309312, 369456, 396288, 412416, 415638, 445824, 463968, 492608, 549888, 554184, 594432, 618624, 623457, 738912, 824832, 831276, 891648, 927936, 985216, 1108368, 1188864, 1237248, 1246914, 1477824, 1649664, 1662552, 1783296, 1855872, 1970432, 2216736, 2474496, 2493828, 2955648, 3325104, 3566592, 3711744, 3940864, 4433472, 4948992, 4987656, 5911296, 6650208, 7423488, 7881728, 8866944, 9975312, 11822592, 13300416, 14846976, 17733888, 19950624, 23645184, 26600832, 35467776, 39901248, 53201664, 70935552, 79802496, 106403328, 159604992, 212806656, 319209984, 638419968]

約数ペア:

[(1, 638419968), (2, 319209984), (3, 212806656), (4, 159604992), (6, 106403328), (8, 79802496), (9, 70935552), (12, 53201664), (16, 39901248), (18, 35467776), (24, 26600832), (27, 23645184), (32, 19950624), (36, 17733888), (43, 14846976), (48, 13300416), (54, 11822592), (64, 9975312), (72, 8866944), (81, 7881728), (86, 7423488), (96, 6650208), (108, 5911296), (128, 4987656), (129, 4948992), (144, 4433472), (162, 3940864), (172, 3711744), (179, 3566592), (192, 3325104), (216, 2955648), (256, 2493828), (258, 2474496), (288, 2216736), (324, 1970432), (344, 1855872), (358, 1783296), (384, 1662552), (387, 1649664), (432, 1477824), (512, 1246914), (516, 1237248), (537, 1188864), (576, 1108368), (648, 985216), (688, 927936), (716, 891648), (768, 831276), (774, 824832), (864, 738912), (1024, 623457), (1032, 618624), (1074, 594432), (1152, 554184), (1161, 549888), (1296, 492608), (1376, 463968), (1432, 445824), (1536, 415638), (1548, 412416), (1611, 396288), (1728, 369456), (2064, 309312), (2148, 297216), (2304, 277092), (2322, 274944), (2592, 246304), (2752, 231984), (2864, 222912), (3072, 207819), (3096, 206208), (3222, 198144), (3456, 184728), (3483, 183296), (4128, 154656), (4296, 148608), (4608, 138546), (4644, 137472), (4833, 132096), (5184, 123152), (5504, 115992), (5728, 111456), (6192, 103104), (6444, 99072), (6912, 92364), (6966, 91648), (7697, 82944), (8256, 77328), (8592, 74304), (9216, 69273), (9288, 68736), (9666, 66048), (10368, 61576), (11008, 57996), (11456, 55728), (12384, 51552), (12888, 49536), (13824, 46182), (13932, 45824), (14499, 44032), (15394, 41472), (16512, 38664), (17184, 37152), (18576, 34368), (19332, 33024), (20736, 30788), (22016, 28998), (22912, 27864), (23091, 27648), (24768, 25776)]