20215623712

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{864211}}^1$

素因数の和:864281

約数の個数: 48

約数和(自身を含む): 43120721952

約数和(自身を除く): 22905098240

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 68, 86, 136, 172, 272, 344, 544, 688, 731, 1376, 1462, 2924, 5848, 11696, 23392, 864211, 1728422, 3456844, 6913688, 13827376, 14691587, 27654752, 29383174, 37161073, 58766348, 74322146, 117532696, 148644292, 235065392, 297288584, 470130784, 594577168, 631738241, 1189154336, 1263476482, 2526952964, 5053905928, 10107811856, 20215623712]

約数ペア:

[(1, 20215623712), (2, 10107811856), (4, 5053905928), (8, 2526952964), (16, 1263476482), (17, 1189154336), (32, 631738241), (34, 594577168), (43, 470130784), (68, 297288584), (86, 235065392), (136, 148644292), (172, 117532696), (272, 74322146), (344, 58766348), (544, 37161073), (688, 29383174), (731, 27654752), (1376, 14691587), (1462, 13827376), (2924, 6913688), (5848, 3456844), (11696, 1728422), (23392, 864211)]