20480642

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2617}}^1$

素因数の和:2682

約数の個数: 32

約数和(自身を含む): 38704512

約数和(自身を除く): 18223870

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 182, 301, 559, 602, 1118, 2617, 3913, 5234, 7826, 18319, 34021, 36638, 68042, 112531, 225062, 238147, 476294, 787717, 1462903, 1575434, 2925806, 10240321, 20480642]

約数ペア:

[(1, 20480642), (2, 10240321), (7, 2925806), (13, 1575434), (14, 1462903), (26, 787717), (43, 476294), (86, 238147), (91, 225062), (182, 112531), (301, 68042), (559, 36638), (602, 34021), (1118, 18319), (2617, 7826), (3913, 5234)]