663317815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{7219}}^1$

素因数の和:7311

約数の個数: 32

約数和(自身を含む): 898283520

約数和(自身を除く): 234965705

約数列:

[1, 5, 17, 23, 47, 85, 115, 235, 391, 799, 1081, 1955, 3995, 5405, 7219, 18377, 36095, 91885, 122723, 166037, 339293, 613615, 830185, 1696465, 2822629, 5767981, 7803739, 14113145, 28839905, 39018695, 132663563, 663317815]

約数ペア:

[(1, 663317815), (5, 132663563), (17, 39018695), (23, 28839905), (47, 14113145), (85, 7803739), (115, 5767981), (235, 2822629), (391, 1696465), (799, 830185), (1081, 613615), (1955, 339293), (3995, 166037), (5405, 122723), (7219, 91885), (18377, 36095)]