20505820

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2677}}^1$

素因数の和:3069

約数の個数: 24

約数和(自身を含む): 43190784

約数和(自身を除く): 22684964

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 2677, 3830, 5354, 7660, 10708, 13385, 26770, 53540, 1025291, 2050582, 4101164, 5126455, 10252910, 20505820]

約数ペア:

[(1, 20505820), (2, 10252910), (4, 5126455), (5, 4101164), (10, 2050582), (20, 1025291), (383, 53540), (766, 26770), (1532, 13385), (1915, 10708), (2677, 7660), (3830, 5354)]