164447996840

素因数分解:

$2^3\times 5^1\times {\mathrm{4111199921}}^1$

素因数の和:4111199932

約数の個数: 16

約数和(自身を含む): 370007992980

約数和(自身を除く): 205559996140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4111199921, 8222399842, 16444799684, 20555999605, 32889599368, 41111999210, 82223998420, 164447996840]

約数ペア:

[(1, 164447996840), (2, 82223998420), (4, 41111999210), (5, 32889599368), (8, 20555999605), (10, 16444799684), (20, 8222399842), (40, 4111199921)]