20456714240

素因数分解:

$2^{12}\times 5^1\times {\mathrm{853}}^1\times {\mathrm{1171}}^1$

素因数の和:2053

約数の個数: 104

約数和(自身を含む): 49189641648

約数和(自身を除く): 28732927408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 853, 1024, 1171, 1280, 1706, 2048, 2342, 2560, 3412, 4096, 4265, 4684, 5120, 5855, 6824, 8530, 9368, 10240, 11710, 13648, 17060, 18736, 20480, 23420, 27296, 34120, 37472, 46840, 54592, 68240, 74944, 93680, 109184, 136480, 149888, 187360, 218368, 272960, 299776, 374720, 436736, 545920, 599552, 749440, 873472, 998863, 1091840, 1199104, 1498880, 1746944, 1997726, 2183680, 2398208, 2997760, 3493888, 3995452, 4367360, 4796416, 4994315, 5995520, 7990904, 8734720, 9988630, 11991040, 15981808, 17469440, 19977260, 23982080, 31963616, 39954520, 63927232, 79909040, 127854464, 159818080, 255708928, 319636160, 511417856, 639272320, 1022835712, 1278544640, 2045671424, 2557089280, 4091342848, 5114178560, 10228357120, 20456714240]

約数ペア:

[(1, 20456714240), (2, 10228357120), (4, 5114178560), (5, 4091342848), (8, 2557089280), (10, 2045671424), (16, 1278544640), (20, 1022835712), (32, 639272320), (40, 511417856), (64, 319636160), (80, 255708928), (128, 159818080), (160, 127854464), (256, 79909040), (320, 63927232), (512, 39954520), (640, 31963616), (853, 23982080), (1024, 19977260), (1171, 17469440), (1280, 15981808), (1706, 11991040), (2048, 9988630), (2342, 8734720), (2560, 7990904), (3412, 5995520), (4096, 4994315), (4265, 4796416), (4684, 4367360), (5120, 3995452), (5855, 3493888), (6824, 2997760), (8530, 2398208), (9368, 2183680), (10240, 1997726), (11710, 1746944), (13648, 1498880), (17060, 1199104), (18736, 1091840), (20480, 998863), (23420, 873472), (27296, 749440), (34120, 599552), (37472, 545920), (46840, 436736), (54592, 374720), (68240, 299776), (74944, 272960), (93680, 218368), (109184, 187360), (136480, 149888)]