128630436608

素因数分解:

$2^8\times {\mathrm{157}}^1\times {\mathrm{1601}}^1\times {\mathrm{1999}}^1$

素因数の和:3773

約数の個数: 72

約数和(自身を含む): 258684552000

約数和(自身を除く): 130054115392

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 157, 256, 314, 628, 1256, 1601, 1999, 2512, 3202, 3998, 5024, 6404, 7996, 10048, 12808, 15992, 20096, 25616, 31984, 40192, 51232, 63968, 102464, 127936, 204928, 251357, 255872, 313843, 409856, 502714, 511744, 627686, 1005428, 1255372, 2010856, 2510744, 3200399, 4021712, 5021488, 6400798, 8043424, 10042976, 12801596, 16086848, 20085952, 25603192, 32173696, 40171904, 51206384, 64347392, 80343808, 102412768, 204825536, 409651072, 502462643, 819302144, 1004925286, 2009850572, 4019701144, 8039402288, 16078804576, 32157609152, 64315218304, 128630436608]

約数ペア:

[(1, 128630436608), (2, 64315218304), (4, 32157609152), (8, 16078804576), (16, 8039402288), (32, 4019701144), (64, 2009850572), (128, 1004925286), (157, 819302144), (256, 502462643), (314, 409651072), (628, 204825536), (1256, 102412768), (1601, 80343808), (1999, 64347392), (2512, 51206384), (3202, 40171904), (3998, 32173696), (5024, 25603192), (6404, 20085952), (7996, 16086848), (10048, 12801596), (12808, 10042976), (15992, 8043424), (20096, 6400798), (25616, 5021488), (31984, 4021712), (40192, 3200399), (51232, 2510744), (63968, 2010856), (102464, 1255372), (127936, 1005428), (204928, 627686), (251357, 511744), (255872, 502714), (313843, 409856)]