19154480

素因数分解:

$2^4\times 5^1\times {\mathrm{239431}}^1$

素因数の和:239444

約数の個数: 20

約数和(自身を含む): 44534352

約数和(自身を除く): 25379872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239431, 478862, 957724, 1197155, 1915448, 2394310, 3830896, 4788620, 9577240, 19154480]

約数ペア:

[(1, 19154480), (2, 9577240), (4, 4788620), (5, 3830896), (8, 2394310), (10, 1915448), (16, 1197155), (20, 957724), (40, 478862), (80, 239431)]