20520770

素因数分解:

$2^1\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{1667}}^1$

素因数の和:2905

約数の個数: 16

約数和(自身を含む): 36989568

約数和(自身を除く): 16468798

約数列:

[1, 2, 5, 10, 1231, 1667, 2462, 3334, 6155, 8335, 12310, 16670, 2052077, 4104154, 10260385, 20520770]

約数ペア:

[(1, 20520770), (2, 10260385), (5, 4104154), (10, 2052077), (1231, 16670), (1667, 12310), (2462, 8335), (3334, 6155)]