28652660

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{16097}}^1$

素因数の和:16195

約数の個数: 24

約数和(自身を含む): 60850440

約数和(自身を除く): 32197780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 16097, 32194, 64388, 80485, 160970, 321940, 1432633, 2865266, 5730532, 7163165, 14326330, 28652660]

約数ペア:

[(1, 28652660), (2, 14326330), (4, 7163165), (5, 5730532), (10, 2865266), (20, 1432633), (89, 321940), (178, 160970), (356, 80485), (445, 64388), (890, 32194), (1780, 16097)]