19710720

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:115

約数の個数: 216

約数和(自身を含む): 71744400

約数和(自身を除く): 52033680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 59, 60, 64, 72, 80, 87, 90, 96, 116, 118, 120, 128, 144, 145, 160, 174, 177, 180, 192, 232, 236, 240, 256, 261, 288, 290, 295, 320, 348, 354, 360, 384, 435, 464, 472, 480, 522, 531, 576, 580, 590, 640, 696, 708, 720, 768, 870, 885, 928, 944, 960, 1044, 1062, 1152, 1160, 1180, 1280, 1305, 1392, 1416, 1440, 1711, 1740, 1770, 1856, 1888, 1920, 2088, 2124, 2304, 2320, 2360, 2610, 2655, 2784, 2832, 2880, 3422, 3480, 3540, 3712, 3776, 3840, 4176, 4248, 4640, 4720, 5133, 5220, 5310, 5568, 5664, 5760, 6844, 6960, 7080, 7424, 7552, 8352, 8496, 8555, 9280, 9440, 10266, 10440, 10620, 11136, 11328, 11520, 13688, 13920, 14160, 15104, 15399, 16704, 16992, 17110, 18560, 18880, 20532, 20880, 21240, 22272, 22656, 25665, 27376, 27840, 28320, 30798, 33408, 33984, 34220, 37120, 37760, 41064, 41760, 42480, 45312, 51330, 54752, 55680, 56640, 61596, 66816, 67968, 68440, 75520, 76995, 82128, 83520, 84960, 102660, 109504, 111360, 113280, 123192, 135936, 136880, 153990, 164256, 167040, 169920, 205320, 219008, 226560, 246384, 273760, 307980, 328512, 334080, 339840, 410640, 438016, 492768, 547520, 615960, 657024, 679680, 821280, 985536, 1095040, 1231920, 1314048, 1642560, 1971072, 2190080, 2463840, 3285120, 3942144, 4927680, 6570240, 9855360, 19710720]

約数ペア:

[(1, 19710720), (2, 9855360), (3, 6570240), (4, 4927680), (5, 3942144), (6, 3285120), (8, 2463840), (9, 2190080), (10, 1971072), (12, 1642560), (15, 1314048), (16, 1231920), (18, 1095040), (20, 985536), (24, 821280), (29, 679680), (30, 657024), (32, 615960), (36, 547520), (40, 492768), (45, 438016), (48, 410640), (58, 339840), (59, 334080), (60, 328512), (64, 307980), (72, 273760), (80, 246384), (87, 226560), (90, 219008), (96, 205320), (116, 169920), (118, 167040), (120, 164256), (128, 153990), (144, 136880), (145, 135936), (160, 123192), (174, 113280), (177, 111360), (180, 109504), (192, 102660), (232, 84960), (236, 83520), (240, 82128), (256, 76995), (261, 75520), (288, 68440), (290, 67968), (295, 66816), (320, 61596), (348, 56640), (354, 55680), (360, 54752), (384, 51330), (435, 45312), (464, 42480), (472, 41760), (480, 41064), (522, 37760), (531, 37120), (576, 34220), (580, 33984), (590, 33408), (640, 30798), (696, 28320), (708, 27840), (720, 27376), (768, 25665), (870, 22656), (885, 22272), (928, 21240), (944, 20880), (960, 20532), (1044, 18880), (1062, 18560), (1152, 17110), (1160, 16992), (1180, 16704), (1280, 15399), (1305, 15104), (1392, 14160), (1416, 13920), (1440, 13688), (1711, 11520), (1740, 11328), (1770, 11136), (1856, 10620), (1888, 10440), (1920, 10266), (2088, 9440), (2124, 9280), (2304, 8555), (2320, 8496), (2360, 8352), (2610, 7552), (2655, 7424), (2784, 7080), (2832, 6960), (2880, 6844), (3422, 5760), (3480, 5664), (3540, 5568), (3712, 5310), (3776, 5220), (3840, 5133), (4176, 4720), (4248, 4640)]