27788140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{313}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 61403328

約数和(自身を除く): 33615188

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 193, 230, 313, 386, 460, 626, 772, 965, 1252, 1565, 1930, 3130, 3860, 4439, 6260, 7199, 8878, 14398, 17756, 22195, 28796, 35995, 44390, 60409, 71990, 88780, 120818, 143980, 241636, 302045, 604090, 1208180, 1389407, 2778814, 5557628, 6947035, 13894070, 27788140]

約数ペア:

[(1, 27788140), (2, 13894070), (4, 6947035), (5, 5557628), (10, 2778814), (20, 1389407), (23, 1208180), (46, 604090), (92, 302045), (115, 241636), (193, 143980), (230, 120818), (313, 88780), (386, 71990), (460, 60409), (626, 44390), (772, 35995), (965, 28796), (1252, 22195), (1565, 17756), (1930, 14398), (3130, 8878), (3860, 7199), (4439, 6260)]