90405287

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 113702400

約数和(自身を除く): 23297113

約数列:

[1, 7, 19, 41, 59, 133, 281, 287, 413, 779, 1121, 1967, 2419, 5339, 5453, 7847, 11521, 16579, 16933, 37373, 45961, 80647, 116053, 218899, 315001, 321727, 679739, 1532293, 2205007, 4758173, 12915041, 90405287]

約数ペア:

[(1, 90405287), (7, 12915041), (19, 4758173), (41, 2205007), (59, 1532293), (133, 679739), (281, 321727), (287, 315001), (413, 218899), (779, 116053), (1121, 80647), (1967, 45961), (2419, 37373), (5339, 16933), (5453, 16579), (7847, 11521)]