788295680

素因数分解:

$2^{12}\times 5^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:721

約数の個数: 104

約数和(自身を含む): 1925736864

約数和(自身を除く): 1137441184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 512, 610, 631, 640, 976, 1024, 1220, 1262, 1280, 1952, 2048, 2440, 2524, 2560, 3155, 3904, 4096, 4880, 5048, 5120, 6310, 7808, 9760, 10096, 10240, 12620, 15616, 19520, 20192, 20480, 25240, 31232, 38491, 39040, 40384, 50480, 62464, 76982, 78080, 80768, 100960, 124928, 153964, 156160, 161536, 192455, 201920, 249856, 307928, 312320, 323072, 384910, 403840, 615856, 624640, 646144, 769820, 807680, 1231712, 1249280, 1292288, 1539640, 1615360, 2463424, 2584576, 3079280, 3230720, 4926848, 6158560, 6461440, 9853696, 12317120, 12922880, 19707392, 24634240, 39414784, 49268480, 78829568, 98536960, 157659136, 197073920, 394147840, 788295680]

約数ペア:

[(1, 788295680), (2, 394147840), (4, 197073920), (5, 157659136), (8, 98536960), (10, 78829568), (16, 49268480), (20, 39414784), (32, 24634240), (40, 19707392), (61, 12922880), (64, 12317120), (80, 9853696), (122, 6461440), (128, 6158560), (160, 4926848), (244, 3230720), (256, 3079280), (305, 2584576), (320, 2463424), (488, 1615360), (512, 1539640), (610, 1292288), (631, 1249280), (640, 1231712), (976, 807680), (1024, 769820), (1220, 646144), (1262, 624640), (1280, 615856), (1952, 403840), (2048, 384910), (2440, 323072), (2524, 312320), (2560, 307928), (3155, 249856), (3904, 201920), (4096, 192455), (4880, 161536), (5048, 156160), (5120, 153964), (6310, 124928), (7808, 100960), (9760, 80768), (10096, 78080), (10240, 76982), (12620, 62464), (15616, 50480), (19520, 40384), (20192, 39040), (20480, 38491), (25240, 31232)]