20040358

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{211}}^1\times {\mathrm{281}}^1$

素因数の和:520

約数の個数: 24

約数和(自身を含む): 32821416

約数和(自身を除く): 12781058

約数列:

[1, 2, 13, 26, 169, 211, 281, 338, 422, 562, 2743, 3653, 5486, 7306, 35659, 47489, 59291, 71318, 94978, 118582, 770783, 1541566, 10020179, 20040358]

約数ペア:

[(1, 20040358), (2, 10020179), (13, 1541566), (26, 770783), (169, 118582), (211, 94978), (281, 71318), (338, 59291), (422, 47489), (562, 35659), (2743, 7306), (3653, 5486)]