291307520

素因数分解:

$2^{16}\times 5^1\times 7^1\times {\mathrm{127}}^1$

素因数の和:171

約数の個数: 136

約数和(自身を含む): 805300224

約数和(自身を除く): 513992704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 127, 128, 140, 160, 224, 254, 256, 280, 320, 448, 508, 512, 560, 635, 640, 889, 896, 1016, 1024, 1120, 1270, 1280, 1778, 1792, 2032, 2048, 2240, 2540, 2560, 3556, 3584, 4064, 4096, 4445, 4480, 5080, 5120, 7112, 7168, 8128, 8192, 8890, 8960, 10160, 10240, 14224, 14336, 16256, 16384, 17780, 17920, 20320, 20480, 28448, 28672, 32512, 32768, 35560, 35840, 40640, 40960, 56896, 57344, 65024, 65536, 71120, 71680, 81280, 81920, 113792, 114688, 130048, 142240, 143360, 162560, 163840, 227584, 229376, 260096, 284480, 286720, 325120, 327680, 455168, 458752, 520192, 568960, 573440, 650240, 910336, 1040384, 1137920, 1146880, 1300480, 1820672, 2080768, 2275840, 2293760, 2600960, 3641344, 4161536, 4551680, 5201920, 7282688, 8323072, 9103360, 10403840, 14565376, 18206720, 20807680, 29130752, 36413440, 41615360, 58261504, 72826880, 145653760, 291307520]

約数ペア:

[(1, 291307520), (2, 145653760), (4, 72826880), (5, 58261504), (7, 41615360), (8, 36413440), (10, 29130752), (14, 20807680), (16, 18206720), (20, 14565376), (28, 10403840), (32, 9103360), (35, 8323072), (40, 7282688), (56, 5201920), (64, 4551680), (70, 4161536), (80, 3641344), (112, 2600960), (127, 2293760), (128, 2275840), (140, 2080768), (160, 1820672), (224, 1300480), (254, 1146880), (256, 1137920), (280, 1040384), (320, 910336), (448, 650240), (508, 573440), (512, 568960), (560, 520192), (635, 458752), (640, 455168), (889, 327680), (896, 325120), (1016, 286720), (1024, 284480), (1120, 260096), (1270, 229376), (1280, 227584), (1778, 163840), (1792, 162560), (2032, 143360), (2048, 142240), (2240, 130048), (2540, 114688), (2560, 113792), (3556, 81920), (3584, 81280), (4064, 71680), (4096, 71120), (4445, 65536), (4480, 65024), (5080, 57344), (5120, 56896), (7112, 40960), (7168, 40640), (8128, 35840), (8192, 35560), (8890, 32768), (8960, 32512), (10160, 28672), (10240, 28448), (14224, 20480), (14336, 20320), (16256, 17920), (16384, 17780)]