20683696

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 47996928

約数和(自身を除く): 27313232

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 31, 34, 44, 62, 68, 88, 124, 136, 176, 187, 223, 248, 272, 341, 374, 446, 496, 527, 682, 748, 892, 1054, 1364, 1496, 1784, 2108, 2453, 2728, 2992, 3568, 3791, 4216, 4906, 5456, 5797, 6913, 7582, 8432, 9812, 11594, 13826, 15164, 19624, 23188, 27652, 30328, 39248, 41701, 46376, 55304, 60656, 76043, 83402, 92752, 110608, 117521, 152086, 166804, 235042, 304172, 333608, 470084, 608344, 667216, 940168, 1216688, 1292731, 1880336, 2585462, 5170924, 10341848, 20683696]

約数ペア:

[(1, 20683696), (2, 10341848), (4, 5170924), (8, 2585462), (11, 1880336), (16, 1292731), (17, 1216688), (22, 940168), (31, 667216), (34, 608344), (44, 470084), (62, 333608), (68, 304172), (88, 235042), (124, 166804), (136, 152086), (176, 117521), (187, 110608), (223, 92752), (248, 83402), (272, 76043), (341, 60656), (374, 55304), (446, 46376), (496, 41701), (527, 39248), (682, 30328), (748, 27652), (892, 23188), (1054, 19624), (1364, 15164), (1496, 13826), (1784, 11594), (2108, 9812), (2453, 8432), (2728, 7582), (2992, 6913), (3568, 5797), (3791, 5456), (4216, 4906)]