79666460

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{28657}}^1$

素因数の和:28805

約数の個数: 24

約数和(自身を含む): 168509040

約数和(自身を除く): 88842580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 28657, 57314, 114628, 143285, 286570, 573140, 3983323, 7966646, 15933292, 19916615, 39833230, 79666460]

約数ペア:

[(1, 79666460), (2, 39833230), (4, 19916615), (5, 15933292), (10, 7966646), (20, 3983323), (139, 573140), (278, 286570), (556, 143285), (695, 114628), (1390, 57314), (2780, 28657)]