308889745

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{991}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 415687680

約数和(自身を除く): 106797935

約数列:

[1, 5, 17, 19, 85, 95, 193, 323, 965, 991, 1615, 3281, 3667, 4955, 16405, 16847, 18335, 18829, 62339, 84235, 94145, 191263, 311695, 320093, 956315, 1600465, 3251471, 3633997, 16257355, 18169985, 61777949, 308889745]

約数ペア:

[(1, 308889745), (5, 61777949), (17, 18169985), (19, 16257355), (85, 3633997), (95, 3251471), (193, 1600465), (323, 956315), (965, 320093), (991, 311695), (1615, 191263), (3281, 94145), (3667, 84235), (4955, 62339), (16405, 18829), (16847, 18335)]