28252540

素因数分解:

$2^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{2099}}^1$

素因数の和:2781

約数の個数: 24

約数和(自身を含む): 59446800

約数和(自身を除く): 31194260

約数列:

[1, 2, 4, 5, 10, 20, 673, 1346, 2099, 2692, 3365, 4198, 6730, 8396, 10495, 13460, 20990, 41980, 1412627, 2825254, 5650508, 7063135, 14126270, 28252540]

約数ペア:

[(1, 28252540), (2, 14126270), (4, 7063135), (5, 5650508), (10, 2825254), (20, 1412627), (673, 41980), (1346, 20990), (2099, 13460), (2692, 10495), (3365, 8396), (4198, 6730)]