72017771

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 90961920

約数和(自身を除く): 18944149

約数列:

[1, 7, 19, 41, 47, 133, 281, 287, 329, 779, 893, 1927, 1967, 5339, 5453, 6251, 11521, 13207, 13489, 36613, 37373, 80647, 92449, 218899, 250933, 256291, 541487, 1532293, 1756531, 3790409, 10288253, 72017771]

約数ペア:

[(1, 72017771), (7, 10288253), (19, 3790409), (41, 1756531), (47, 1532293), (133, 541487), (281, 256291), (287, 250933), (329, 218899), (779, 92449), (893, 80647), (1927, 37373), (1967, 36613), (5339, 13489), (5453, 13207), (6251, 11521)]