257290880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:287

約数の個数: 256

約数和(自身を含む): 803727360

約数和(自身を除く): 546436480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 23, 28, 32, 35, 40, 44, 46, 55, 56, 64, 70, 77, 80, 88, 92, 110, 112, 115, 128, 140, 154, 160, 161, 176, 184, 220, 224, 227, 230, 253, 280, 308, 320, 322, 352, 368, 385, 440, 448, 454, 460, 506, 560, 616, 640, 644, 704, 736, 770, 805, 880, 896, 908, 920, 1012, 1120, 1135, 1232, 1265, 1288, 1408, 1472, 1540, 1589, 1610, 1760, 1771, 1816, 1840, 2024, 2240, 2270, 2464, 2497, 2530, 2576, 2944, 3080, 3178, 3220, 3520, 3542, 3632, 3680, 4048, 4480, 4540, 4928, 4994, 5060, 5152, 5221, 6160, 6356, 6440, 7040, 7084, 7264, 7360, 7945, 8096, 8855, 9080, 9856, 9988, 10120, 10304, 10442, 12320, 12485, 12712, 12880, 14168, 14528, 14720, 15890, 16192, 17479, 17710, 18160, 19976, 20240, 20608, 20884, 24640, 24970, 25424, 25760, 26105, 28336, 29056, 31780, 32384, 34958, 35420, 36320, 36547, 39952, 40480, 41768, 49280, 49940, 50848, 51520, 52210, 56672, 57431, 63560, 69916, 70840, 72640, 73094, 79904, 80960, 83536, 87395, 99880, 101696, 103040, 104420, 113344, 114862, 127120, 139832, 141680, 145280, 146188, 159808, 161920, 167072, 174790, 182735, 199760, 203392, 208840, 226688, 229724, 254240, 279664, 283360, 287155, 292376, 319616, 334144, 349580, 365470, 399520, 402017, 417680, 459448, 508480, 559328, 566720, 574310, 584752, 668288, 699160, 730940, 799040, 804034, 835360, 918896, 1016960, 1118656, 1133440, 1148620, 1169504, 1398320, 1461880, 1598080, 1608068, 1670720, 1837792, 2010085, 2237312, 2297240, 2339008, 2796640, 2923760, 3216136, 3341440, 3675584, 4020170, 4594480, 4678016, 5593280, 5847520, 6432272, 7351168, 8040340, 9188960, 11186560, 11695040, 12864544, 16080680, 18377920, 23390080, 25729088, 32161360, 36755840, 51458176, 64322720, 128645440, 257290880]

約数ペア:

[(1, 257290880), (2, 128645440), (4, 64322720), (5, 51458176), (7, 36755840), (8, 32161360), (10, 25729088), (11, 23390080), (14, 18377920), (16, 16080680), (20, 12864544), (22, 11695040), (23, 11186560), (28, 9188960), (32, 8040340), (35, 7351168), (40, 6432272), (44, 5847520), (46, 5593280), (55, 4678016), (56, 4594480), (64, 4020170), (70, 3675584), (77, 3341440), (80, 3216136), (88, 2923760), (92, 2796640), (110, 2339008), (112, 2297240), (115, 2237312), (128, 2010085), (140, 1837792), (154, 1670720), (160, 1608068), (161, 1598080), (176, 1461880), (184, 1398320), (220, 1169504), (224, 1148620), (227, 1133440), (230, 1118656), (253, 1016960), (280, 918896), (308, 835360), (320, 804034), (322, 799040), (352, 730940), (368, 699160), (385, 668288), (440, 584752), (448, 574310), (454, 566720), (460, 559328), (506, 508480), (560, 459448), (616, 417680), (640, 402017), (644, 399520), (704, 365470), (736, 349580), (770, 334144), (805, 319616), (880, 292376), (896, 287155), (908, 283360), (920, 279664), (1012, 254240), (1120, 229724), (1135, 226688), (1232, 208840), (1265, 203392), (1288, 199760), (1408, 182735), (1472, 174790), (1540, 167072), (1589, 161920), (1610, 159808), (1760, 146188), (1771, 145280), (1816, 141680), (1840, 139832), (2024, 127120), (2240, 114862), (2270, 113344), (2464, 104420), (2497, 103040), (2530, 101696), (2576, 99880), (2944, 87395), (3080, 83536), (3178, 80960), (3220, 79904), (3520, 73094), (3542, 72640), (3632, 70840), (3680, 69916), (4048, 63560), (4480, 57431), (4540, 56672), (4928, 52210), (4994, 51520), (5060, 50848), (5152, 49940), (5221, 49280), (6160, 41768), (6356, 40480), (6440, 39952), (7040, 36547), (7084, 36320), (7264, 35420), (7360, 34958), (7945, 32384), (8096, 31780), (8855, 29056), (9080, 28336), (9856, 26105), (9988, 25760), (10120, 25424), (10304, 24970), (10442, 24640), (12320, 20884), (12485, 20608), (12712, 20240), (12880, 19976), (14168, 18160), (14528, 17710), (14720, 17479), (15890, 16192)]