20704288

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:601

約数の個数: 48

約数和(自身を含む): 44906400

約数和(自身を除く): 24202112

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 131, 176, 262, 352, 449, 524, 898, 1048, 1441, 1796, 2096, 2882, 3592, 4192, 4939, 5764, 7184, 9878, 11528, 14368, 19756, 23056, 39512, 46112, 58819, 79024, 117638, 158048, 235276, 470552, 647009, 941104, 1294018, 1882208, 2588036, 5176072, 10352144, 20704288]

約数ペア:

[(1, 20704288), (2, 10352144), (4, 5176072), (8, 2588036), (11, 1882208), (16, 1294018), (22, 941104), (32, 647009), (44, 470552), (88, 235276), (131, 158048), (176, 117638), (262, 79024), (352, 58819), (449, 46112), (524, 39512), (898, 23056), (1048, 19756), (1441, 14368), (1796, 11528), (2096, 9878), (2882, 7184), (3592, 5764), (4192, 4939)]