85320860

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{31139}}^1$

素因数の和:31285

約数の個数: 24

約数和(自身を含む): 180487440

約数和(自身を除く): 95166580

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 31139, 62278, 124556, 155695, 311390, 622780, 4266043, 8532086, 17064172, 21330215, 42660430, 85320860]

約数ペア:

[(1, 85320860), (2, 42660430), (4, 21330215), (5, 17064172), (10, 8532086), (20, 4266043), (137, 622780), (274, 311390), (548, 155695), (685, 124556), (1370, 62278), (2740, 31139)]