4278155

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3943}}^1$

素因数の和:3986

約数の個数: 16

約数和(自身を含む): 6057984

約数和(自身を除く): 1779829

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 3943, 19715, 27601, 122233, 138005, 611165, 855631, 4278155]

約数ペア:

[(1, 4278155), (5, 855631), (7, 611165), (31, 138005), (35, 122233), (155, 27601), (217, 19715), (1085, 3943)]