20688204

素因数分解:

$2^2\times 3^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 49548800

約数和(自身を除く): 28860596

約数列:

[1, 2, 3, 4, 6, 12, 79, 139, 157, 158, 237, 278, 314, 316, 417, 471, 474, 556, 628, 834, 942, 948, 1668, 1884, 10981, 12403, 21823, 21962, 24806, 32943, 37209, 43646, 43924, 49612, 65469, 65886, 74418, 87292, 130938, 131772, 148836, 261876, 1724017, 3448034, 5172051, 6896068, 10344102, 20688204]

約数ペア:

[(1, 20688204), (2, 10344102), (3, 6896068), (4, 5172051), (6, 3448034), (12, 1724017), (79, 261876), (139, 148836), (157, 131772), (158, 130938), (237, 87292), (278, 74418), (314, 65886), (316, 65469), (417, 49612), (471, 43924), (474, 43646), (556, 37209), (628, 32943), (834, 24806), (942, 21962), (948, 21823), (1668, 12403), (1884, 10981)]