128714880

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:247

約数の個数: 256

約数和(自身を含む): 479612160

約数和(自身を除く): 350897280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 61, 64, 70, 80, 84, 96, 105, 112, 120, 122, 128, 140, 157, 160, 168, 183, 192, 210, 224, 240, 244, 280, 305, 314, 320, 336, 366, 384, 420, 427, 448, 471, 480, 488, 560, 610, 628, 640, 672, 732, 785, 840, 854, 896, 915, 942, 960, 976, 1099, 1120, 1220, 1256, 1281, 1344, 1464, 1570, 1680, 1708, 1830, 1884, 1920, 1952, 2135, 2198, 2240, 2355, 2440, 2512, 2562, 2688, 2928, 3140, 3297, 3360, 3416, 3660, 3768, 3904, 4270, 4396, 4480, 4710, 4880, 5024, 5124, 5495, 5856, 6280, 6405, 6594, 6720, 6832, 7320, 7536, 7808, 8540, 8792, 9420, 9577, 9760, 10048, 10248, 10990, 11712, 12560, 12810, 13188, 13440, 13664, 14640, 15072, 16485, 17080, 17584, 18840, 19154, 19520, 20096, 20496, 21980, 23424, 25120, 25620, 26376, 27328, 28731, 29280, 30144, 32970, 34160, 35168, 37680, 38308, 39040, 40992, 43960, 47885, 50240, 51240, 52752, 54656, 57462, 58560, 60288, 65940, 67039, 68320, 70336, 75360, 76616, 81984, 87920, 95770, 100480, 102480, 105504, 114924, 117120, 131880, 134078, 136640, 140672, 143655, 150720, 153232, 163968, 175840, 191540, 201117, 204960, 211008, 229848, 263760, 268156, 273280, 287310, 301440, 306464, 335195, 351680, 383080, 402234, 409920, 422016, 459696, 527520, 536312, 574620, 612928, 670390, 703360, 766160, 804468, 819840, 919392, 1005585, 1055040, 1072624, 1149240, 1225856, 1340780, 1532320, 1608936, 1838784, 2011170, 2110080, 2145248, 2298480, 2681560, 3064640, 3217872, 3677568, 4022340, 4290496, 4596960, 5363120, 6129280, 6435744, 8044680, 8580992, 9193920, 10726240, 12871488, 16089360, 18387840, 21452480, 25742976, 32178720, 42904960, 64357440, 128714880]

約数ペア:

[(1, 128714880), (2, 64357440), (3, 42904960), (4, 32178720), (5, 25742976), (6, 21452480), (7, 18387840), (8, 16089360), (10, 12871488), (12, 10726240), (14, 9193920), (15, 8580992), (16, 8044680), (20, 6435744), (21, 6129280), (24, 5363120), (28, 4596960), (30, 4290496), (32, 4022340), (35, 3677568), (40, 3217872), (42, 3064640), (48, 2681560), (56, 2298480), (60, 2145248), (61, 2110080), (64, 2011170), (70, 1838784), (80, 1608936), (84, 1532320), (96, 1340780), (105, 1225856), (112, 1149240), (120, 1072624), (122, 1055040), (128, 1005585), (140, 919392), (157, 819840), (160, 804468), (168, 766160), (183, 703360), (192, 670390), (210, 612928), (224, 574620), (240, 536312), (244, 527520), (280, 459696), (305, 422016), (314, 409920), (320, 402234), (336, 383080), (366, 351680), (384, 335195), (420, 306464), (427, 301440), (448, 287310), (471, 273280), (480, 268156), (488, 263760), (560, 229848), (610, 211008), (628, 204960), (640, 201117), (672, 191540), (732, 175840), (785, 163968), (840, 153232), (854, 150720), (896, 143655), (915, 140672), (942, 136640), (960, 134078), (976, 131880), (1099, 117120), (1120, 114924), (1220, 105504), (1256, 102480), (1281, 100480), (1344, 95770), (1464, 87920), (1570, 81984), (1680, 76616), (1708, 75360), (1830, 70336), (1884, 68320), (1920, 67039), (1952, 65940), (2135, 60288), (2198, 58560), (2240, 57462), (2355, 54656), (2440, 52752), (2512, 51240), (2562, 50240), (2688, 47885), (2928, 43960), (3140, 40992), (3297, 39040), (3360, 38308), (3416, 37680), (3660, 35168), (3768, 34160), (3904, 32970), (4270, 30144), (4396, 29280), (4480, 28731), (4710, 27328), (4880, 26376), (5024, 25620), (5124, 25120), (5495, 23424), (5856, 21980), (6280, 20496), (6405, 20096), (6594, 19520), (6720, 19154), (6832, 18840), (7320, 17584), (7536, 17080), (7808, 16485), (8540, 15072), (8792, 14640), (9420, 13664), (9577, 13440), (9760, 13188), (10048, 12810), (10248, 12560), (10990, 11712)]