205316615

素因数分解:

$5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{19489}}^1$

素因数の和:19551

約数の個数: 24

約数和(自身を含む): 293285520

約数和(自身を除く): 87968905

約数列:

[1, 5, 7, 35, 43, 49, 215, 245, 301, 1505, 2107, 10535, 19489, 97445, 136423, 682115, 838027, 954961, 4190135, 4774805, 5866189, 29330945, 41063323, 205316615]

約数ペア:

[(1, 205316615), (5, 41063323), (7, 29330945), (35, 5866189), (43, 4774805), (49, 4190135), (215, 954961), (245, 838027), (301, 682115), (1505, 136423), (2107, 97445), (10535, 19489)]