80775040

素因数分解:

$2^7\times 5^1\times {\mathrm{126211}}^1$

素因数の和:126230

約数の個数: 32

約数和(自身を含む): 193104360

約数和(自身を除く): 112329320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 126211, 252422, 504844, 631055, 1009688, 1262110, 2019376, 2524220, 4038752, 5048440, 8077504, 10096880, 16155008, 20193760, 40387520, 80775040]

約数ペア:

[(1, 80775040), (2, 40387520), (4, 20193760), (5, 16155008), (8, 10096880), (10, 8077504), (16, 5048440), (20, 4038752), (32, 2524220), (40, 2019376), (64, 1262110), (80, 1009688), (128, 631055), (160, 504844), (320, 252422), (640, 126211)]