80285816

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{1381}}^1$

素因数の和:1456

約数の個数: 48

約数和(自身を含む): 166917960

約数和(自身を除く): 86632144

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 169, 172, 338, 344, 559, 676, 1118, 1352, 1381, 2236, 2762, 4472, 5524, 7267, 11048, 14534, 17953, 29068, 35906, 58136, 59383, 71812, 118766, 143624, 233389, 237532, 466778, 475064, 771979, 933556, 1543958, 1867112, 3087916, 6175832, 10035727, 20071454, 40142908, 80285816]

約数ペア:

[(1, 80285816), (2, 40142908), (4, 20071454), (8, 10035727), (13, 6175832), (26, 3087916), (43, 1867112), (52, 1543958), (86, 933556), (104, 771979), (169, 475064), (172, 466778), (338, 237532), (344, 233389), (559, 143624), (676, 118766), (1118, 71812), (1352, 59383), (1381, 58136), (2236, 35906), (2762, 29068), (4472, 17953), (5524, 14534), (7267, 11048)]