19254380

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7349}}^1$

素因数の和:7489

約数の個数: 24

約数和(自身を含む): 40748400

約数和(自身を除く): 21494020

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7349, 14698, 29396, 36745, 73490, 146980, 962719, 1925438, 3850876, 4813595, 9627190, 19254380]

約数ペア:

[(1, 19254380), (2, 9627190), (4, 4813595), (5, 3850876), (10, 1925438), (20, 962719), (131, 146980), (262, 73490), (524, 36745), (655, 29396), (1310, 14698), (2620, 7349)]