1288915088

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{905137}}^1$

素因数の和:905234

約数の個数: 20

約数和(自身を含む): 2525335020

約数和(自身を除く): 1236419932

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 905137, 1810274, 3620548, 7241096, 14482192, 80557193, 161114386, 322228772, 644457544, 1288915088]

約数ペア:

[(1, 1288915088), (2, 644457544), (4, 322228772), (8, 161114386), (16, 80557193), (89, 14482192), (178, 7241096), (356, 3620548), (712, 1810274), (1424, 905137)]