20109890

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{42787}}^1$

素因数の和:42841

約数の個数: 16

約数和(自身を含む): 36968832

約数和(自身を除く): 16858942

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 42787, 85574, 213935, 427870, 2010989, 4021978, 10054945, 20109890]

約数ペア:

[(1, 20109890), (2, 10054945), (5, 4021978), (10, 2010989), (47, 427870), (94, 213935), (235, 85574), (470, 42787)]