26809404080

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{338161}}^1$

素因数の和:339165

約数の個数: 40

約数和(自身を含む): 62394946944

約数和(自身を除く): 35585542864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1982, 3964, 4955, 7928, 9910, 15856, 19820, 39640, 79280, 338161, 676322, 1352644, 1690805, 2705288, 3381610, 5410576, 6763220, 13526440, 27052880, 335117551, 670235102, 1340470204, 1675587755, 2680940408, 3351175510, 5361880816, 6702351020, 13404702040, 26809404080]

約数ペア:

[(1, 26809404080), (2, 13404702040), (4, 6702351020), (5, 5361880816), (8, 3351175510), (10, 2680940408), (16, 1675587755), (20, 1340470204), (40, 670235102), (80, 335117551), (991, 27052880), (1982, 13526440), (3964, 6763220), (4955, 5410576), (7928, 3381610), (9910, 2705288), (15856, 1690805), (19820, 1352644), (39640, 676322), (79280, 338161)]