20207824

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13879}}^1$

素因数の和:13907

約数の個数: 40

約数和(自身を含む): 48191360

約数和(自身を除く): 27983536

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13879, 27758, 55516, 97153, 111032, 180427, 194306, 222064, 360854, 388612, 721708, 777224, 1262989, 1443416, 1554448, 2525978, 2886832, 5051956, 10103912, 20207824]

約数ペア:

[(1, 20207824), (2, 10103912), (4, 5051956), (7, 2886832), (8, 2525978), (13, 1554448), (14, 1443416), (16, 1262989), (26, 777224), (28, 721708), (52, 388612), (56, 360854), (91, 222064), (104, 194306), (112, 180427), (182, 111032), (208, 97153), (364, 55516), (728, 27758), (1456, 13879)]