20001670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2903}}^1$

素因数の和:2976

約数の個数: 32

約数和(自身を含む): 39517632

約数和(自身を除く): 19515962

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 2903, 3445, 5806, 6890, 14515, 29030, 37739, 75478, 153859, 188695, 307718, 377390, 769295, 1538590, 2000167, 4000334, 10000835, 20001670]

約数ペア:

[(1, 20001670), (2, 10000835), (5, 4000334), (10, 2000167), (13, 1538590), (26, 769295), (53, 377390), (65, 307718), (106, 188695), (130, 153859), (265, 75478), (530, 37739), (689, 29030), (1378, 14515), (2903, 6890), (3445, 5806)]