40002809

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{739}}^1$

素因数の和:813

約数の個数: 32

約数和(自身を含む): 53990400

約数和(自身を除く): 13987591

約数列:

[1, 7, 11, 19, 37, 77, 133, 209, 259, 407, 703, 739, 1463, 2849, 4921, 5173, 7733, 8129, 14041, 27343, 54131, 56903, 98287, 154451, 191401, 300773, 519517, 1081157, 2105411, 3636619, 5714687, 40002809]

約数ペア:

[(1, 40002809), (7, 5714687), (11, 3636619), (19, 2105411), (37, 1081157), (77, 519517), (133, 300773), (209, 191401), (259, 154451), (407, 98287), (703, 56903), (739, 54131), (1463, 27343), (2849, 14041), (4921, 8129), (5173, 7733)]