66400090

素因数分解:

$2^1\times 5^1\times {\mathrm{6640009}}^1$

素因数の和:6640016

約数の個数: 8

約数和(自身を含む): 119520180

約数和(自身を除く): 53120090

約数列:

[1, 2, 5, 10, 6640009, 13280018, 33200045, 66400090]

約数ペア:

[(1, 66400090), (2, 33200045), (5, 13280018), (10, 6640009)]