21415680

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2$

素因数の和:64

約数の個数: 324

約数和(自身を含む): 87528168

約数和(自身を除く): 66112488

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 26, 30, 32, 33, 36, 39, 40, 44, 45, 48, 52, 55, 60, 64, 65, 66, 72, 78, 80, 88, 90, 96, 99, 104, 110, 117, 120, 128, 130, 132, 143, 144, 156, 160, 165, 169, 176, 180, 192, 195, 198, 208, 220, 234, 240, 256, 260, 264, 286, 288, 312, 320, 330, 338, 352, 360, 384, 390, 396, 416, 429, 440, 468, 480, 495, 507, 520, 528, 572, 576, 585, 624, 640, 660, 676, 704, 715, 720, 768, 780, 792, 832, 845, 858, 880, 936, 960, 990, 1014, 1040, 1056, 1144, 1152, 1170, 1248, 1280, 1287, 1320, 1352, 1408, 1430, 1440, 1521, 1560, 1584, 1664, 1690, 1716, 1760, 1859, 1872, 1920, 1980, 2028, 2080, 2112, 2145, 2288, 2304, 2340, 2496, 2535, 2574, 2640, 2704, 2816, 2860, 2880, 3042, 3120, 3168, 3328, 3380, 3432, 3520, 3718, 3744, 3840, 3960, 4056, 4160, 4224, 4290, 4576, 4680, 4992, 5070, 5148, 5280, 5408, 5577, 5720, 5760, 6084, 6240, 6336, 6435, 6760, 6864, 7040, 7436, 7488, 7605, 7920, 8112, 8320, 8448, 8580, 9152, 9295, 9360, 9984, 10140, 10296, 10560, 10816, 11154, 11440, 11520, 12168, 12480, 12672, 12870, 13520, 13728, 14080, 14872, 14976, 15210, 15840, 16224, 16640, 16731, 17160, 18304, 18590, 18720, 20280, 20592, 21120, 21632, 22308, 22880, 24336, 24960, 25344, 25740, 27040, 27456, 27885, 29744, 29952, 30420, 31680, 32448, 33462, 34320, 36608, 37180, 37440, 40560, 41184, 42240, 43264, 44616, 45760, 48672, 49920, 51480, 54080, 54912, 55770, 59488, 60840, 63360, 64896, 66924, 68640, 74360, 74880, 81120, 82368, 83655, 89232, 91520, 97344, 102960, 108160, 109824, 111540, 118976, 121680, 126720, 129792, 133848, 137280, 148720, 149760, 162240, 164736, 167310, 178464, 183040, 194688, 205920, 216320, 223080, 237952, 243360, 267696, 274560, 297440, 324480, 329472, 334620, 356928, 389376, 411840, 446160, 475904, 486720, 535392, 549120, 594880, 648960, 669240, 713856, 823680, 892320, 973440, 1070784, 1189760, 1338480, 1427712, 1647360, 1784640, 1946880, 2141568, 2379520, 2676960, 3569280, 4283136, 5353920, 7138560, 10707840, 21415680]

約数ペア:

[(1, 21415680), (2, 10707840), (3, 7138560), (4, 5353920), (5, 4283136), (6, 3569280), (8, 2676960), (9, 2379520), (10, 2141568), (11, 1946880), (12, 1784640), (13, 1647360), (15, 1427712), (16, 1338480), (18, 1189760), (20, 1070784), (22, 973440), (24, 892320), (26, 823680), (30, 713856), (32, 669240), (33, 648960), (36, 594880), (39, 549120), (40, 535392), (44, 486720), (45, 475904), (48, 446160), (52, 411840), (55, 389376), (60, 356928), (64, 334620), (65, 329472), (66, 324480), (72, 297440), (78, 274560), (80, 267696), (88, 243360), (90, 237952), (96, 223080), (99, 216320), (104, 205920), (110, 194688), (117, 183040), (120, 178464), (128, 167310), (130, 164736), (132, 162240), (143, 149760), (144, 148720), (156, 137280), (160, 133848), (165, 129792), (169, 126720), (176, 121680), (180, 118976), (192, 111540), (195, 109824), (198, 108160), (208, 102960), (220, 97344), (234, 91520), (240, 89232), (256, 83655), (260, 82368), (264, 81120), (286, 74880), (288, 74360), (312, 68640), (320, 66924), (330, 64896), (338, 63360), (352, 60840), (360, 59488), (384, 55770), (390, 54912), (396, 54080), (416, 51480), (429, 49920), (440, 48672), (468, 45760), (480, 44616), (495, 43264), (507, 42240), (520, 41184), (528, 40560), (572, 37440), (576, 37180), (585, 36608), (624, 34320), (640, 33462), (660, 32448), (676, 31680), (704, 30420), (715, 29952), (720, 29744), (768, 27885), (780, 27456), (792, 27040), (832, 25740), (845, 25344), (858, 24960), (880, 24336), (936, 22880), (960, 22308), (990, 21632), (1014, 21120), (1040, 20592), (1056, 20280), (1144, 18720), (1152, 18590), (1170, 18304), (1248, 17160), (1280, 16731), (1287, 16640), (1320, 16224), (1352, 15840), (1408, 15210), (1430, 14976), (1440, 14872), (1521, 14080), (1560, 13728), (1584, 13520), (1664, 12870), (1690, 12672), (1716, 12480), (1760, 12168), (1859, 11520), (1872, 11440), (1920, 11154), (1980, 10816), (2028, 10560), (2080, 10296), (2112, 10140), (2145, 9984), (2288, 9360), (2304, 9295), (2340, 9152), (2496, 8580), (2535, 8448), (2574, 8320), (2640, 8112), (2704, 7920), (2816, 7605), (2860, 7488), (2880, 7436), (3042, 7040), (3120, 6864), (3168, 6760), (3328, 6435), (3380, 6336), (3432, 6240), (3520, 6084), (3718, 5760), (3744, 5720), (3840, 5577), (3960, 5408), (4056, 5280), (4160, 5148), (4224, 5070), (4290, 4992), (4576, 4680)]