215768845

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 300614400

約数和(自身を除く): 84845555

約数列:

[1, 5, 17, 19, 29, 85, 95, 145, 271, 289, 323, 493, 551, 1355, 1445, 1615, 2465, 2755, 4607, 5149, 5491, 7859, 8381, 9367, 23035, 25745, 27455, 39295, 41905, 46835, 78319, 87533, 133603, 149321, 159239, 391595, 437665, 668015, 746605, 796195, 1488061, 2271251, 2538457, 7440305, 11356255, 12692285, 43153769, 215768845]

約数ペア:

[(1, 215768845), (5, 43153769), (17, 12692285), (19, 11356255), (29, 7440305), (85, 2538457), (95, 2271251), (145, 1488061), (271, 796195), (289, 746605), (323, 668015), (493, 437665), (551, 391595), (1355, 159239), (1445, 149321), (1615, 133603), (2465, 87533), (2755, 78319), (4607, 46835), (5149, 41905), (5491, 39295), (7859, 27455), (8381, 25745), (9367, 23035)]