28212880

素因数分解:

$2^4\times 5^1\times {\mathrm{352661}}^1$

素因数の和:352674

約数の個数: 20

約数和(自身を含む): 65595132

約数和(自身を除く): 37382252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 352661, 705322, 1410644, 1763305, 2821288, 3526610, 5642576, 7053220, 14106440, 28212880]

約数ペア:

[(1, 28212880), (2, 14106440), (4, 7053220), (5, 5642576), (8, 3526610), (10, 2821288), (16, 1763305), (20, 1410644), (40, 705322), (80, 352661)]