257272320

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:406

約数の個数: 160

約数和(自身を含む): 831821760

約数和(自身を除く): 574549440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 139, 160, 192, 240, 241, 256, 278, 320, 384, 417, 480, 482, 512, 556, 640, 695, 723, 768, 834, 960, 964, 1112, 1205, 1280, 1390, 1446, 1536, 1668, 1920, 1928, 2085, 2224, 2410, 2560, 2780, 2892, 3336, 3615, 3840, 3856, 4170, 4448, 4820, 5560, 5784, 6672, 7230, 7680, 7712, 8340, 8896, 9640, 11120, 11568, 13344, 14460, 15424, 16680, 17792, 19280, 22240, 23136, 26688, 28920, 30848, 33360, 33499, 35584, 38560, 44480, 46272, 53376, 57840, 61696, 66720, 66998, 71168, 77120, 88960, 92544, 100497, 106752, 115680, 123392, 133440, 133996, 154240, 167495, 177920, 185088, 200994, 213504, 231360, 266880, 267992, 308480, 334990, 355840, 370176, 401988, 462720, 502485, 533760, 535984, 616960, 669980, 803976, 925440, 1004970, 1067520, 1071968, 1339960, 1607952, 1850880, 2009940, 2143936, 2679920, 3215904, 4019880, 4287872, 5359840, 6431808, 8039760, 8575744, 10719680, 12863616, 16079520, 17151488, 21439360, 25727232, 32159040, 42878720, 51454464, 64318080, 85757440, 128636160, 257272320]

約数ペア:

[(1, 257272320), (2, 128636160), (3, 85757440), (4, 64318080), (5, 51454464), (6, 42878720), (8, 32159040), (10, 25727232), (12, 21439360), (15, 17151488), (16, 16079520), (20, 12863616), (24, 10719680), (30, 8575744), (32, 8039760), (40, 6431808), (48, 5359840), (60, 4287872), (64, 4019880), (80, 3215904), (96, 2679920), (120, 2143936), (128, 2009940), (139, 1850880), (160, 1607952), (192, 1339960), (240, 1071968), (241, 1067520), (256, 1004970), (278, 925440), (320, 803976), (384, 669980), (417, 616960), (480, 535984), (482, 533760), (512, 502485), (556, 462720), (640, 401988), (695, 370176), (723, 355840), (768, 334990), (834, 308480), (960, 267992), (964, 266880), (1112, 231360), (1205, 213504), (1280, 200994), (1390, 185088), (1446, 177920), (1536, 167495), (1668, 154240), (1920, 133996), (1928, 133440), (2085, 123392), (2224, 115680), (2410, 106752), (2560, 100497), (2780, 92544), (2892, 88960), (3336, 77120), (3615, 71168), (3840, 66998), (3856, 66720), (4170, 61696), (4448, 57840), (4820, 53376), (5560, 46272), (5784, 44480), (6672, 38560), (7230, 35584), (7680, 33499), (7712, 33360), (8340, 30848), (8896, 28920), (9640, 26688), (11120, 23136), (11568, 22240), (13344, 19280), (14460, 17792), (15424, 16680)]