20067840

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:109

約数の個数: 240

約数和(自身を含む): 75963888

約数和(自身を除く): 55896048

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 67, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 134, 144, 156, 160, 180, 192, 195, 201, 208, 234, 240, 256, 260, 268, 288, 312, 320, 335, 360, 384, 390, 402, 416, 468, 480, 512, 520, 536, 576, 585, 603, 624, 640, 670, 720, 768, 780, 804, 832, 871, 936, 960, 1005, 1040, 1072, 1152, 1170, 1206, 1248, 1280, 1340, 1440, 1536, 1560, 1608, 1664, 1742, 1872, 1920, 2010, 2080, 2144, 2304, 2340, 2412, 2496, 2560, 2613, 2680, 2880, 3015, 3120, 3216, 3328, 3484, 3744, 3840, 4020, 4160, 4288, 4355, 4608, 4680, 4824, 4992, 5226, 5360, 5760, 6030, 6240, 6432, 6656, 6968, 7488, 7680, 7839, 8040, 8320, 8576, 8710, 9360, 9648, 9984, 10452, 10720, 11520, 12060, 12480, 12864, 13065, 13936, 14976, 15678, 16080, 16640, 17152, 17420, 18720, 19296, 19968, 20904, 21440, 23040, 24120, 24960, 25728, 26130, 27872, 29952, 31356, 32160, 33280, 34304, 34840, 37440, 38592, 39195, 41808, 42880, 48240, 49920, 51456, 52260, 55744, 59904, 62712, 64320, 69680, 74880, 77184, 78390, 83616, 85760, 96480, 99840, 102912, 104520, 111488, 125424, 128640, 139360, 149760, 154368, 156780, 167232, 171520, 192960, 209040, 222976, 250848, 257280, 278720, 299520, 308736, 313560, 334464, 385920, 418080, 445952, 501696, 514560, 557440, 627120, 668928, 771840, 836160, 1003392, 1114880, 1254240, 1337856, 1543680, 1672320, 2006784, 2229760, 2508480, 3344640, 4013568, 5016960, 6689280, 10033920, 20067840]

約数ペア:

[(1, 20067840), (2, 10033920), (3, 6689280), (4, 5016960), (5, 4013568), (6, 3344640), (8, 2508480), (9, 2229760), (10, 2006784), (12, 1672320), (13, 1543680), (15, 1337856), (16, 1254240), (18, 1114880), (20, 1003392), (24, 836160), (26, 771840), (30, 668928), (32, 627120), (36, 557440), (39, 514560), (40, 501696), (45, 445952), (48, 418080), (52, 385920), (60, 334464), (64, 313560), (65, 308736), (67, 299520), (72, 278720), (78, 257280), (80, 250848), (90, 222976), (96, 209040), (104, 192960), (117, 171520), (120, 167232), (128, 156780), (130, 154368), (134, 149760), (144, 139360), (156, 128640), (160, 125424), (180, 111488), (192, 104520), (195, 102912), (201, 99840), (208, 96480), (234, 85760), (240, 83616), (256, 78390), (260, 77184), (268, 74880), (288, 69680), (312, 64320), (320, 62712), (335, 59904), (360, 55744), (384, 52260), (390, 51456), (402, 49920), (416, 48240), (468, 42880), (480, 41808), (512, 39195), (520, 38592), (536, 37440), (576, 34840), (585, 34304), (603, 33280), (624, 32160), (640, 31356), (670, 29952), (720, 27872), (768, 26130), (780, 25728), (804, 24960), (832, 24120), (871, 23040), (936, 21440), (960, 20904), (1005, 19968), (1040, 19296), (1072, 18720), (1152, 17420), (1170, 17152), (1206, 16640), (1248, 16080), (1280, 15678), (1340, 14976), (1440, 13936), (1536, 13065), (1560, 12864), (1608, 12480), (1664, 12060), (1742, 11520), (1872, 10720), (1920, 10452), (2010, 9984), (2080, 9648), (2144, 9360), (2304, 8710), (2340, 8576), (2412, 8320), (2496, 8040), (2560, 7839), (2613, 7680), (2680, 7488), (2880, 6968), (3015, 6656), (3120, 6432), (3216, 6240), (3328, 6030), (3484, 5760), (3744, 5360), (3840, 5226), (4020, 4992), (4160, 4824), (4288, 4680), (4355, 4608)]