28651376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 80

約数和(自身を含む): 64120896

約数和(自身を除く): 35469520

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 53, 92, 104, 106, 113, 184, 208, 212, 226, 299, 368, 424, 452, 598, 689, 848, 904, 1196, 1219, 1378, 1469, 1808, 2392, 2438, 2599, 2756, 2938, 4784, 4876, 5198, 5512, 5876, 5989, 9752, 10396, 11024, 11752, 11978, 15847, 19504, 20792, 23504, 23956, 31694, 33787, 41584, 47912, 63388, 67574, 77857, 95824, 126776, 135148, 137747, 155714, 253552, 270296, 275494, 311428, 540592, 550988, 622856, 1101976, 1245712, 1790711, 2203952, 3581422, 7162844, 14325688, 28651376]

約数ペア:

[(1, 28651376), (2, 14325688), (4, 7162844), (8, 3581422), (13, 2203952), (16, 1790711), (23, 1245712), (26, 1101976), (46, 622856), (52, 550988), (53, 540592), (92, 311428), (104, 275494), (106, 270296), (113, 253552), (184, 155714), (208, 137747), (212, 135148), (226, 126776), (299, 95824), (368, 77857), (424, 67574), (452, 63388), (598, 47912), (689, 41584), (848, 33787), (904, 31694), (1196, 23956), (1219, 23504), (1378, 20792), (1469, 19504), (1808, 15847), (2392, 11978), (2438, 11752), (2599, 11024), (2756, 10396), (2938, 9752), (4784, 5989), (4876, 5876), (5198, 5512)]