26780990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{30091}}^1$

素因数の和:30187

約数の個数: 16

約数和(自身を含む): 48749040

約数和(自身を除く): 21968050

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 30091, 60182, 150455, 300910, 2678099, 5356198, 13390495, 26780990]

約数ペア:

[(1, 26780990), (2, 13390495), (5, 5356198), (10, 2678099), (89, 300910), (178, 150455), (445, 60182), (890, 30091)]