639498240

素因数分解:

$2^{11}\times 3^5\times 5^1\times {\mathrm{257}}^1$

素因数の和:299

約数の個数: 288

約数和(自身を含む): 2307417840

約数和(自身を除く): 1667919600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 257, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 512, 514, 540, 576, 640, 648, 720, 768, 771, 810, 864, 960, 972, 1024, 1028, 1080, 1152, 1215, 1280, 1285, 1296, 1440, 1536, 1542, 1620, 1728, 1920, 1944, 2048, 2056, 2160, 2304, 2313, 2430, 2560, 2570, 2592, 2880, 3072, 3084, 3240, 3456, 3840, 3855, 3888, 4112, 4320, 4608, 4626, 4860, 5120, 5140, 5184, 5760, 6144, 6168, 6480, 6912, 6939, 7680, 7710, 7776, 8224, 8640, 9216, 9252, 9720, 10240, 10280, 10368, 11520, 11565, 12336, 12960, 13824, 13878, 15360, 15420, 15552, 16448, 17280, 18432, 18504, 19440, 20560, 20736, 20817, 23040, 23130, 24672, 25920, 27648, 27756, 30720, 30840, 31104, 32896, 34560, 34695, 37008, 38880, 41120, 41472, 41634, 46080, 46260, 49344, 51840, 55296, 55512, 61680, 62208, 62451, 65792, 69120, 69390, 74016, 77760, 82240, 82944, 83268, 92160, 92520, 98688, 103680, 104085, 111024, 123360, 124416, 124902, 131584, 138240, 138780, 148032, 155520, 164480, 165888, 166536, 185040, 197376, 207360, 208170, 222048, 246720, 248832, 249804, 263168, 276480, 277560, 296064, 311040, 312255, 328960, 333072, 370080, 394752, 414720, 416340, 444096, 493440, 497664, 499608, 526336, 555120, 592128, 622080, 624510, 657920, 666144, 740160, 789504, 829440, 832680, 888192, 986880, 999216, 1110240, 1184256, 1244160, 1249020, 1315840, 1332288, 1480320, 1579008, 1665360, 1776384, 1973760, 1998432, 2220480, 2368512, 2488320, 2498040, 2631680, 2664576, 2960640, 3330720, 3552768, 3947520, 3996864, 4440960, 4737024, 4996080, 5329152, 5921280, 6661440, 7105536, 7895040, 7993728, 8881920, 9992160, 10658304, 11842560, 13322880, 14211072, 15987456, 17763840, 19984320, 21316608, 23685120, 26645760, 31974912, 35527680, 39968640, 42633216, 53291520, 63949824, 71055360, 79937280, 106583040, 127899648, 159874560, 213166080, 319749120, 639498240]

約数ペア:

[(1, 639498240), (2, 319749120), (3, 213166080), (4, 159874560), (5, 127899648), (6, 106583040), (8, 79937280), (9, 71055360), (10, 63949824), (12, 53291520), (15, 42633216), (16, 39968640), (18, 35527680), (20, 31974912), (24, 26645760), (27, 23685120), (30, 21316608), (32, 19984320), (36, 17763840), (40, 15987456), (45, 14211072), (48, 13322880), (54, 11842560), (60, 10658304), (64, 9992160), (72, 8881920), (80, 7993728), (81, 7895040), (90, 7105536), (96, 6661440), (108, 5921280), (120, 5329152), (128, 4996080), (135, 4737024), (144, 4440960), (160, 3996864), (162, 3947520), (180, 3552768), (192, 3330720), (216, 2960640), (240, 2664576), (243, 2631680), (256, 2498040), (257, 2488320), (270, 2368512), (288, 2220480), (320, 1998432), (324, 1973760), (360, 1776384), (384, 1665360), (405, 1579008), (432, 1480320), (480, 1332288), (486, 1315840), (512, 1249020), (514, 1244160), (540, 1184256), (576, 1110240), (640, 999216), (648, 986880), (720, 888192), (768, 832680), (771, 829440), (810, 789504), (864, 740160), (960, 666144), (972, 657920), (1024, 624510), (1028, 622080), (1080, 592128), (1152, 555120), (1215, 526336), (1280, 499608), (1285, 497664), (1296, 493440), (1440, 444096), (1536, 416340), (1542, 414720), (1620, 394752), (1728, 370080), (1920, 333072), (1944, 328960), (2048, 312255), (2056, 311040), (2160, 296064), (2304, 277560), (2313, 276480), (2430, 263168), (2560, 249804), (2570, 248832), (2592, 246720), (2880, 222048), (3072, 208170), (3084, 207360), (3240, 197376), (3456, 185040), (3840, 166536), (3855, 165888), (3888, 164480), (4112, 155520), (4320, 148032), (4608, 138780), (4626, 138240), (4860, 131584), (5120, 124902), (5140, 124416), (5184, 123360), (5760, 111024), (6144, 104085), (6168, 103680), (6480, 98688), (6912, 92520), (6939, 92160), (7680, 83268), (7710, 82944), (7776, 82240), (8224, 77760), (8640, 74016), (9216, 69390), (9252, 69120), (9720, 65792), (10240, 62451), (10280, 62208), (10368, 61680), (11520, 55512), (11565, 55296), (12336, 51840), (12960, 49344), (13824, 46260), (13878, 46080), (15360, 41634), (15420, 41472), (15552, 41120), (16448, 38880), (17280, 37008), (18432, 34695), (18504, 34560), (19440, 32896), (20560, 31104), (20736, 30840), (20817, 30720), (23040, 27756), (23130, 27648), (24672, 25920)]