20784250880

素因数分解:

$2^{15}\times 5^1\times {\mathrm{126857}}^1$

素因数の和:126892

約数の個数: 64

約数和(自身を含む): 49881834180

約数和(自身を除く): 29097583300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 4096, 5120, 8192, 10240, 16384, 20480, 32768, 40960, 81920, 126857, 163840, 253714, 507428, 634285, 1014856, 1268570, 2029712, 2537140, 4059424, 5074280, 8118848, 10148560, 16237696, 20297120, 32475392, 40594240, 64950784, 81188480, 129901568, 162376960, 259803136, 324753920, 519606272, 649507840, 1039212544, 1299015680, 2078425088, 2598031360, 4156850176, 5196062720, 10392125440, 20784250880]

約数ペア:

[(1, 20784250880), (2, 10392125440), (4, 5196062720), (5, 4156850176), (8, 2598031360), (10, 2078425088), (16, 1299015680), (20, 1039212544), (32, 649507840), (40, 519606272), (64, 324753920), (80, 259803136), (128, 162376960), (160, 129901568), (256, 81188480), (320, 64950784), (512, 40594240), (640, 32475392), (1024, 20297120), (1280, 16237696), (2048, 10148560), (2560, 8118848), (4096, 5074280), (5120, 4059424), (8192, 2537140), (10240, 2029712), (16384, 1268570), (20480, 1014856), (32768, 634285), (40960, 507428), (81920, 253714), (126857, 163840)]