1277801768

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{20639}}^1$

素因数の和:20825

約数の個数: 32

約数和(自身を含む): 2452032000

約数和(自身を除く): 1174230232

約数列:

[1, 2, 4, 8, 71, 109, 142, 218, 284, 436, 568, 872, 7739, 15478, 20639, 30956, 41278, 61912, 82556, 165112, 1465369, 2249651, 2930738, 4499302, 5861476, 8998604, 11722952, 17997208, 159725221, 319450442, 638900884, 1277801768]

約数ペア:

[(1, 1277801768), (2, 638900884), (4, 319450442), (8, 159725221), (71, 17997208), (109, 11722952), (142, 8998604), (218, 5861476), (284, 4499302), (436, 2930738), (568, 2249651), (872, 1465369), (7739, 165112), (15478, 82556), (20639, 61912), (30956, 41278)]