17811820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68507}}^1$

素因数の和:68529

約数の個数: 24

約数和(自身を含む): 40282704

約数和(自身を除く): 22470884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 68507, 137014, 274028, 342535, 685070, 890591, 1370140, 1781182, 3562364, 4452955, 8905910, 17811820]

約数ペア:

[(1, 17811820), (2, 8905910), (4, 4452955), (5, 3562364), (10, 1781182), (13, 1370140), (20, 890591), (26, 685070), (52, 342535), (65, 274028), (130, 137014), (260, 68507)]