20860510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2671}}^1$

素因数の和:2760

約数の個数: 32

約数和(自身を含む): 41554944

約数和(自身を除く): 20694434

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 2671, 3905, 5342, 7810, 13355, 26710, 29381, 58762, 146905, 189641, 293810, 379282, 948205, 1896410, 2086051, 4172102, 10430255, 20860510]

約数ペア:

[(1, 20860510), (2, 10430255), (5, 4172102), (10, 2086051), (11, 1896410), (22, 948205), (55, 379282), (71, 293810), (110, 189641), (142, 146905), (355, 58762), (710, 29381), (781, 26710), (1562, 13355), (2671, 7810), (3905, 5342)]