81338672

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{2663}}^1$

素因数の和:2777

約数の個数: 40

約数和(自身を含む): 166489344

約数和(自身を除く): 85150672

約数列:

[1, 2, 4, 8, 16, 23, 46, 83, 92, 166, 184, 332, 368, 664, 1328, 1909, 2663, 3818, 5326, 7636, 10652, 15272, 21304, 30544, 42608, 61249, 122498, 221029, 244996, 442058, 489992, 884116, 979984, 1768232, 3536464, 5083667, 10167334, 20334668, 40669336, 81338672]

約数ペア:

[(1, 81338672), (2, 40669336), (4, 20334668), (8, 10167334), (16, 5083667), (23, 3536464), (46, 1768232), (83, 979984), (92, 884116), (166, 489992), (184, 442058), (332, 244996), (368, 221029), (664, 122498), (1328, 61249), (1909, 42608), (2663, 30544), (3818, 21304), (5326, 15272), (7636, 10652)]