666793904

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{313343}}^1$

素因数の和:313377

約数の個数: 40

約数和(自身を含む): 1554186240

約数和(自身を除く): 887392336

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 313343, 626686, 1253372, 2193401, 2506744, 4386802, 5013488, 5953517, 8773604, 11907034, 17547208, 23814068, 35094416, 41674619, 47628136, 83349238, 95256272, 166698476, 333396952, 666793904]

約数ペア:

[(1, 666793904), (2, 333396952), (4, 166698476), (7, 95256272), (8, 83349238), (14, 47628136), (16, 41674619), (19, 35094416), (28, 23814068), (38, 17547208), (56, 11907034), (76, 8773604), (112, 5953517), (133, 5013488), (152, 4386802), (266, 2506744), (304, 2193401), (532, 1253372), (1064, 626686), (2128, 313343)]