1280144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{4211}}^1$

素因数の和:4238

約数の個数: 20

約数和(自身を含む): 2611440

約数和(自身を除く): 1331296

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 4211, 8422, 16844, 33688, 67376, 80009, 160018, 320036, 640072, 1280144]

約数ペア:

[(1, 1280144), (2, 640072), (4, 320036), (8, 160018), (16, 80009), (19, 67376), (38, 33688), (76, 16844), (152, 8422), (304, 4211)]