8980990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10091}}^1$

素因数の和:10187

約数の個数: 16

約数和(自身を含む): 16349040

約数和(自身を除く): 7368050

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 10091, 20182, 50455, 100910, 898099, 1796198, 4490495, 8980990]

約数ペア:

[(1, 8980990), (2, 4490495), (5, 1796198), (10, 898099), (89, 100910), (178, 50455), (445, 20182), (890, 10091)]