648397440

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:424

約数の個数: 256

約数和(自身を含む): 2320704000

約数和(自身を除く): 1672306560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 157, 160, 180, 192, 216, 239, 240, 270, 288, 314, 320, 360, 384, 432, 471, 478, 480, 540, 576, 628, 640, 717, 720, 785, 864, 942, 956, 960, 1080, 1152, 1195, 1256, 1413, 1434, 1440, 1570, 1728, 1884, 1912, 1920, 2151, 2160, 2355, 2390, 2512, 2826, 2868, 2880, 3140, 3456, 3585, 3768, 3824, 4239, 4302, 4320, 4710, 4780, 5024, 5652, 5736, 5760, 6280, 6453, 7065, 7170, 7536, 7648, 8478, 8604, 8640, 9420, 9560, 10048, 10755, 11304, 11472, 12560, 12906, 14130, 14340, 15072, 15296, 16956, 17208, 17280, 18840, 19120, 20096, 21195, 21510, 22608, 22944, 25120, 25812, 28260, 28680, 30144, 30592, 32265, 33912, 34416, 37523, 37680, 38240, 42390, 43020, 45216, 45888, 50240, 51624, 56520, 57360, 60288, 64530, 67824, 68832, 75046, 75360, 76480, 84780, 86040, 90432, 91776, 100480, 103248, 112569, 113040, 114720, 129060, 135648, 137664, 150092, 150720, 152960, 169560, 172080, 180864, 187615, 206496, 225138, 226080, 229440, 258120, 271296, 275328, 300184, 301440, 337707, 339120, 344160, 375230, 412992, 450276, 452160, 458880, 516240, 542592, 562845, 600368, 675414, 678240, 688320, 750460, 825984, 900552, 904320, 1013121, 1032480, 1125690, 1200736, 1350828, 1356480, 1376640, 1500920, 1688535, 1801104, 2026242, 2064960, 2251380, 2401472, 2701656, 2712960, 3001840, 3377070, 3602208, 4052484, 4129920, 4502760, 4802944, 5065605, 5403312, 6003680, 6754140, 7204416, 8104968, 9005520, 10131210, 10806624, 12007360, 13508280, 14408832, 16209936, 18011040, 20262420, 21613248, 24014720, 27016560, 32419872, 36022080, 40524840, 43226496, 54033120, 64839744, 72044160, 81049680, 108066240, 129679488, 162099360, 216132480, 324198720, 648397440]

約数ペア:

[(1, 648397440), (2, 324198720), (3, 216132480), (4, 162099360), (5, 129679488), (6, 108066240), (8, 81049680), (9, 72044160), (10, 64839744), (12, 54033120), (15, 43226496), (16, 40524840), (18, 36022080), (20, 32419872), (24, 27016560), (27, 24014720), (30, 21613248), (32, 20262420), (36, 18011040), (40, 16209936), (45, 14408832), (48, 13508280), (54, 12007360), (60, 10806624), (64, 10131210), (72, 9005520), (80, 8104968), (90, 7204416), (96, 6754140), (108, 6003680), (120, 5403312), (128, 5065605), (135, 4802944), (144, 4502760), (157, 4129920), (160, 4052484), (180, 3602208), (192, 3377070), (216, 3001840), (239, 2712960), (240, 2701656), (270, 2401472), (288, 2251380), (314, 2064960), (320, 2026242), (360, 1801104), (384, 1688535), (432, 1500920), (471, 1376640), (478, 1356480), (480, 1350828), (540, 1200736), (576, 1125690), (628, 1032480), (640, 1013121), (717, 904320), (720, 900552), (785, 825984), (864, 750460), (942, 688320), (956, 678240), (960, 675414), (1080, 600368), (1152, 562845), (1195, 542592), (1256, 516240), (1413, 458880), (1434, 452160), (1440, 450276), (1570, 412992), (1728, 375230), (1884, 344160), (1912, 339120), (1920, 337707), (2151, 301440), (2160, 300184), (2355, 275328), (2390, 271296), (2512, 258120), (2826, 229440), (2868, 226080), (2880, 225138), (3140, 206496), (3456, 187615), (3585, 180864), (3768, 172080), (3824, 169560), (4239, 152960), (4302, 150720), (4320, 150092), (4710, 137664), (4780, 135648), (5024, 129060), (5652, 114720), (5736, 113040), (5760, 112569), (6280, 103248), (6453, 100480), (7065, 91776), (7170, 90432), (7536, 86040), (7648, 84780), (8478, 76480), (8604, 75360), (8640, 75046), (9420, 68832), (9560, 67824), (10048, 64530), (10755, 60288), (11304, 57360), (11472, 56520), (12560, 51624), (12906, 50240), (14130, 45888), (14340, 45216), (15072, 43020), (15296, 42390), (16956, 38240), (17208, 37680), (17280, 37523), (18840, 34416), (19120, 33912), (20096, 32265), (21195, 30592), (21510, 30144), (22608, 28680), (22944, 28260), (25120, 25812)]