128538260

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{279431}}^1$

素因数の和:279463

約数の個数: 24

約数和(自身を含む): 281667456

約数和(自身を除く): 153129196

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 279431, 558862, 1117724, 1397155, 2794310, 5588620, 6426913, 12853826, 25707652, 32134565, 64269130, 128538260]

約数ペア:

[(1, 128538260), (2, 64269130), (4, 32134565), (5, 25707652), (10, 12853826), (20, 6426913), (23, 5588620), (46, 2794310), (92, 1397155), (115, 1117724), (230, 558862), (460, 279431)]