245149780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{645131}}^1$

素因数の和:645159

約数の個数: 24

約数和(自身を含む): 541910880

約数和(自身を除く): 296761100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 645131, 1290262, 2580524, 3225655, 6451310, 12257489, 12902620, 24514978, 49029956, 61287445, 122574890, 245149780]

約数ペア:

[(1, 245149780), (2, 122574890), (4, 61287445), (5, 49029956), (10, 24514978), (19, 12902620), (20, 12257489), (38, 6451310), (76, 3225655), (95, 2580524), (190, 1290262), (380, 645131)]