20787029165

素因数分解:

$5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{181}}^1\times {\mathrm{3691}}^1$

素因数の和:4018

約数の個数: 48

約数和(自身を含む): 29415020544

約数和(自身を除く): 8627991379

約数列:

[1, 5, 7, 35, 49, 127, 181, 245, 635, 889, 905, 1267, 3691, 4445, 6223, 6335, 8869, 18455, 22987, 25837, 31115, 44345, 114935, 129185, 160909, 180859, 468757, 668071, 804545, 904295, 1126363, 2343785, 3281299, 3340355, 4676497, 5631815, 16406495, 22969093, 23382485, 32735479, 84845017, 114845465, 163677395, 424225085, 593915119, 2969575595, 4157405833, 20787029165]

約数ペア:

[(1, 20787029165), (5, 4157405833), (7, 2969575595), (35, 593915119), (49, 424225085), (127, 163677395), (181, 114845465), (245, 84845017), (635, 32735479), (889, 23382485), (905, 22969093), (1267, 16406495), (3691, 5631815), (4445, 4676497), (6223, 3340355), (6335, 3281299), (8869, 2343785), (18455, 1126363), (22987, 904295), (25837, 804545), (31115, 668071), (44345, 468757), (114935, 180859), (129185, 160909)]