81999248

素因数分解:

$2^4\times {\mathrm{1279}}^1\times {\mathrm{4007}}^1$

素因数の和:5294

約数の個数: 20

約数和(自身を含む): 159037440

約数和(自身を除く): 77038192

約数列:

[1, 2, 4, 8, 16, 1279, 2558, 4007, 5116, 8014, 10232, 16028, 20464, 32056, 64112, 5124953, 10249906, 20499812, 40999624, 81999248]

約数ペア:

[(1, 81999248), (2, 40999624), (4, 20499812), (8, 10249906), (16, 5124953), (1279, 64112), (2558, 32056), (4007, 20464), (5116, 16028), (8014, 10232)]