20187682405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1759}}^1\times {\mathrm{2939}}^1$

素因数の和:4785

約数の個数: 32

約数和(自身を含む): 26824089600

約数和(自身を除く): 6636407195

約数列:

[1, 5, 11, 55, 71, 355, 781, 1759, 2939, 3905, 8795, 14695, 19349, 32329, 96745, 124889, 161645, 208669, 624445, 1043345, 1373779, 2295359, 5169701, 6868895, 11476795, 25848505, 56866711, 284333555, 367048771, 1835243855, 4037536481, 20187682405]

約数ペア:

[(1, 20187682405), (5, 4037536481), (11, 1835243855), (55, 367048771), (71, 284333555), (355, 56866711), (781, 25848505), (1759, 11476795), (2939, 6868895), (3905, 5169701), (8795, 2295359), (14695, 1373779), (19349, 1043345), (32329, 624445), (96745, 208669), (124889, 161645)]