19400180

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3119}}^1$

素因数の和:3439

約数の個数: 24

約数和(自身を含む): 40884480

約数和(自身を除く): 21484300

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 3119, 6220, 6238, 12476, 15595, 31190, 62380, 970009, 1940018, 3880036, 4850045, 9700090, 19400180]

約数ペア:

[(1, 19400180), (2, 9700090), (4, 4850045), (5, 3880036), (10, 1940018), (20, 970009), (311, 62380), (622, 31190), (1244, 15595), (1555, 12476), (3110, 6238), (3119, 6220)]