257278136

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{3631}}^1$

素因数の和:4175

約数の個数: 32

約数和(自身を含む): 511894080

約数和(自身を除く): 254615944

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 521, 1042, 2084, 3631, 4168, 7262, 8857, 14524, 17714, 29048, 35428, 61727, 70856, 123454, 246908, 493816, 1891751, 3783502, 7567004, 15134008, 32159767, 64319534, 128639068, 257278136]

約数ペア:

[(1, 257278136), (2, 128639068), (4, 64319534), (8, 32159767), (17, 15134008), (34, 7567004), (68, 3783502), (136, 1891751), (521, 493816), (1042, 246908), (2084, 123454), (3631, 70856), (4168, 61727), (7262, 35428), (8857, 29048), (14524, 17714)]