128405938

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1\times {\mathrm{1907}}^1$

素因数の和:2297

約数の個数: 16

約数和(自身を含む): 194936544

約数和(自身を除く): 66530606

約数列:

[1, 2, 131, 257, 262, 514, 1907, 3814, 33667, 67334, 249817, 490099, 499634, 980198, 64202969, 128405938]

約数ペア:

[(1, 128405938), (2, 64202969), (131, 980198), (257, 499634), (262, 490099), (514, 249817), (1907, 67334), (3814, 33667)]