128428208

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{863}}^1$

素因数の和:1073

約数の個数: 40

約数和(自身を含む): 254555136

約数和(自身を除く): 126126928

約数列:

[1, 2, 4, 8, 16, 71, 131, 142, 262, 284, 524, 568, 863, 1048, 1136, 1726, 2096, 3452, 6904, 9301, 13808, 18602, 37204, 61273, 74408, 113053, 122546, 148816, 226106, 245092, 452212, 490184, 904424, 980368, 1808848, 8026763, 16053526, 32107052, 64214104, 128428208]

約数ペア:

[(1, 128428208), (2, 64214104), (4, 32107052), (8, 16053526), (16, 8026763), (71, 1808848), (131, 980368), (142, 904424), (262, 490184), (284, 452212), (524, 245092), (568, 226106), (863, 148816), (1048, 122546), (1136, 113053), (1726, 74408), (2096, 61273), (3452, 37204), (6904, 18602), (9301, 13808)]