1279968208

素因数分解:

$2^4\times {\mathrm{6991}}^1\times {\mathrm{11443}}^1$

素因数の和:18442

約数の個数: 20

約数和(自身を含む): 2480509888

約数和(自身を除く): 1200541680

約数列:

[1, 2, 4, 8, 16, 6991, 11443, 13982, 22886, 27964, 45772, 55928, 91544, 111856, 183088, 79998013, 159996026, 319992052, 639984104, 1279968208]

約数ペア:

[(1, 1279968208), (2, 639984104), (4, 319992052), (8, 159996026), (16, 79998013), (6991, 183088), (11443, 111856), (13982, 91544), (22886, 55928), (27964, 45772)]