20008786

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 37526976

約数和(自身を除く): 17518190

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 107, 133, 214, 259, 266, 361, 518, 703, 722, 749, 1406, 1498, 2033, 2527, 3959, 4066, 4921, 5054, 7918, 9842, 13357, 14231, 26714, 27713, 28462, 38627, 55426, 75221, 77254, 93499, 150442, 186998, 270389, 526547, 540778, 1053094, 1429199, 2858398, 10004393, 20008786]

約数ペア:

[(1, 20008786), (2, 10004393), (7, 2858398), (14, 1429199), (19, 1053094), (37, 540778), (38, 526547), (74, 270389), (107, 186998), (133, 150442), (214, 93499), (259, 77254), (266, 75221), (361, 55426), (518, 38627), (703, 28462), (722, 27713), (749, 26714), (1406, 14231), (1498, 13357), (2033, 9842), (2527, 7918), (3959, 5054), (4066, 4921)]