20757260

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{2477}}^1$

素因数の和:2905

約数の個数: 24

約数和(自身を含む): 43711920

約数和(自身を除く): 22954660

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 2477, 4190, 4954, 8380, 9908, 12385, 24770, 49540, 1037863, 2075726, 4151452, 5189315, 10378630, 20757260]

約数ペア:

[(1, 20757260), (2, 10378630), (4, 5189315), (5, 4151452), (10, 2075726), (20, 1037863), (419, 49540), (838, 24770), (1676, 12385), (2095, 9908), (2477, 8380), (4190, 4954)]