20399632

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:328

約数の個数: 60

約数和(自身を含む): 44676828

約数和(自身を除く): 24277196

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 121, 164, 176, 242, 257, 328, 451, 484, 514, 656, 902, 968, 1028, 1804, 1936, 2056, 2827, 3608, 4112, 4961, 5654, 7216, 9922, 10537, 11308, 19844, 21074, 22616, 31097, 39688, 42148, 45232, 62194, 79376, 84296, 115907, 124388, 168592, 231814, 248776, 463628, 497552, 927256, 1274977, 1854512, 2549954, 5099908, 10199816, 20399632]

約数ペア:

[(1, 20399632), (2, 10199816), (4, 5099908), (8, 2549954), (11, 1854512), (16, 1274977), (22, 927256), (41, 497552), (44, 463628), (82, 248776), (88, 231814), (121, 168592), (164, 124388), (176, 115907), (242, 84296), (257, 79376), (328, 62194), (451, 45232), (484, 42148), (514, 39688), (656, 31097), (902, 22616), (968, 21074), (1028, 19844), (1804, 11308), (1936, 10537), (2056, 9922), (2827, 7216), (3608, 5654), (4112, 4961)]