51972880

素因数分解:

$2^4\times 5^1\times {\mathrm{649661}}^1$

素因数の和:649674

約数の個数: 20

約数和(自身を含む): 120837132

約数和(自身を除く): 68864252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 649661, 1299322, 2598644, 3248305, 5197288, 6496610, 10394576, 12993220, 25986440, 51972880]

約数ペア:

[(1, 51972880), (2, 25986440), (4, 12993220), (5, 10394576), (8, 6496610), (10, 5197288), (16, 3248305), (20, 2598644), (40, 1299322), (80, 649661)]