20874950

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4691}}^1$

素因数の和:4792

約数の個数: 24

約数和(自身を含む): 39272040

約数和(自身を除く): 18397090

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 4691, 9382, 23455, 46910, 117275, 234550, 417499, 834998, 2087495, 4174990, 10437475, 20874950]

約数ペア:

[(1, 20874950), (2, 10437475), (5, 4174990), (10, 2087495), (25, 834998), (50, 417499), (89, 234550), (178, 117275), (445, 46910), (890, 23455), (2225, 9382), (4450, 4691)]