209958080

素因数分解:

$2^6\times 5^1\times {\mathrm{656119}}^1$

素因数の和:656136

約数の個数: 28

約数和(自身を含む): 499963440

約数和(自身を除く): 290005360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 656119, 1312238, 2624476, 3280595, 5248952, 6561190, 10497904, 13122380, 20995808, 26244760, 41991616, 52489520, 104979040, 209958080]

約数ペア:

[(1, 209958080), (2, 104979040), (4, 52489520), (5, 41991616), (8, 26244760), (10, 20995808), (16, 13122380), (20, 10497904), (32, 6561190), (40, 5248952), (64, 3280595), (80, 2624476), (160, 1312238), (320, 656119)]