20604015

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^2\times {\mathrm{163}}^1$

素因数の和:280

約数の個数: 36

約数和(自身を含む): 36623496

約数和(自身を除く): 16019481

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 163, 265, 477, 489, 795, 815, 1467, 2385, 2445, 2809, 7335, 8427, 8639, 14045, 25281, 25917, 42135, 43195, 77751, 126405, 129585, 388755, 457867, 1373601, 2289335, 4120803, 6868005, 20604015]

約数ペア:

[(1, 20604015), (3, 6868005), (5, 4120803), (9, 2289335), (15, 1373601), (45, 457867), (53, 388755), (159, 129585), (163, 126405), (265, 77751), (477, 43195), (489, 42135), (795, 25917), (815, 25281), (1467, 14045), (2385, 8639), (2445, 8427), (2809, 7335)]