254423680

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 256

約数和(自身を含む): 758880000

約数和(自身を除く): 504456320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 61, 64, 70, 76, 80, 95, 98, 112, 122, 128, 133, 140, 152, 160, 190, 196, 224, 244, 245, 266, 280, 304, 305, 320, 343, 380, 392, 427, 448, 488, 490, 532, 560, 608, 610, 640, 665, 686, 760, 784, 854, 896, 931, 976, 980, 1064, 1120, 1159, 1216, 1220, 1330, 1372, 1520, 1568, 1708, 1715, 1862, 1952, 1960, 2128, 2135, 2240, 2318, 2432, 2440, 2660, 2744, 2989, 3040, 3136, 3416, 3430, 3724, 3904, 3920, 4256, 4270, 4480, 4636, 4655, 4880, 5320, 5488, 5795, 5978, 6080, 6272, 6517, 6832, 6860, 7448, 7808, 7840, 8113, 8512, 8540, 9272, 9310, 9760, 10640, 10976, 11590, 11956, 12160, 13034, 13664, 13720, 14896, 14945, 15680, 16226, 17024, 17080, 18544, 18620, 19520, 20923, 21280, 21952, 23180, 23912, 26068, 27328, 27440, 29792, 29890, 31360, 32452, 32585, 34160, 37088, 37240, 39040, 40565, 41846, 42560, 43904, 46360, 47824, 52136, 54656, 54880, 56791, 59584, 59780, 64904, 65170, 68320, 74176, 74480, 81130, 83692, 85120, 92720, 95648, 104272, 104615, 109760, 113582, 119168, 119560, 129808, 130340, 136640, 148352, 148960, 162260, 167384, 185440, 191296, 208544, 209230, 219520, 227164, 239120, 259616, 260680, 273280, 283955, 297920, 324520, 334768, 370880, 382592, 397537, 417088, 418460, 454328, 478240, 519232, 521360, 567910, 595840, 649040, 669536, 741760, 795074, 834176, 836920, 908656, 956480, 1038464, 1042720, 1135820, 1298080, 1339072, 1590148, 1673840, 1817312, 1912960, 1987685, 2085440, 2271640, 2596160, 2678144, 3180296, 3347680, 3634624, 3975370, 4170880, 4543280, 5192320, 6360592, 6695360, 7269248, 7950740, 9086560, 12721184, 13390720, 15901480, 18173120, 25442368, 31802960, 36346240, 50884736, 63605920, 127211840, 254423680]

約数ペア:

[(1, 254423680), (2, 127211840), (4, 63605920), (5, 50884736), (7, 36346240), (8, 31802960), (10, 25442368), (14, 18173120), (16, 15901480), (19, 13390720), (20, 12721184), (28, 9086560), (32, 7950740), (35, 7269248), (38, 6695360), (40, 6360592), (49, 5192320), (56, 4543280), (61, 4170880), (64, 3975370), (70, 3634624), (76, 3347680), (80, 3180296), (95, 2678144), (98, 2596160), (112, 2271640), (122, 2085440), (128, 1987685), (133, 1912960), (140, 1817312), (152, 1673840), (160, 1590148), (190, 1339072), (196, 1298080), (224, 1135820), (244, 1042720), (245, 1038464), (266, 956480), (280, 908656), (304, 836920), (305, 834176), (320, 795074), (343, 741760), (380, 669536), (392, 649040), (427, 595840), (448, 567910), (488, 521360), (490, 519232), (532, 478240), (560, 454328), (608, 418460), (610, 417088), (640, 397537), (665, 382592), (686, 370880), (760, 334768), (784, 324520), (854, 297920), (896, 283955), (931, 273280), (976, 260680), (980, 259616), (1064, 239120), (1120, 227164), (1159, 219520), (1216, 209230), (1220, 208544), (1330, 191296), (1372, 185440), (1520, 167384), (1568, 162260), (1708, 148960), (1715, 148352), (1862, 136640), (1952, 130340), (1960, 129808), (2128, 119560), (2135, 119168), (2240, 113582), (2318, 109760), (2432, 104615), (2440, 104272), (2660, 95648), (2744, 92720), (2989, 85120), (3040, 83692), (3136, 81130), (3416, 74480), (3430, 74176), (3724, 68320), (3904, 65170), (3920, 64904), (4256, 59780), (4270, 59584), (4480, 56791), (4636, 54880), (4655, 54656), (4880, 52136), (5320, 47824), (5488, 46360), (5795, 43904), (5978, 42560), (6080, 41846), (6272, 40565), (6517, 39040), (6832, 37240), (6860, 37088), (7448, 34160), (7808, 32585), (7840, 32452), (8113, 31360), (8512, 29890), (8540, 29792), (9272, 27440), (9310, 27328), (9760, 26068), (10640, 23912), (10976, 23180), (11590, 21952), (11956, 21280), (12160, 20923), (13034, 19520), (13664, 18620), (13720, 18544), (14896, 17080), (14945, 17024), (15680, 16226)]