81495230

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{20323}}^1$

素因数の和:20731

約数の個数: 16

約数和(自身を含む): 147064464

約数和(自身を除く): 65569234

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 20323, 40646, 101615, 203230, 8149523, 16299046, 40747615, 81495230]

約数ペア:

[(1, 81495230), (2, 40747615), (5, 16299046), (10, 8149523), (401, 203230), (802, 101615), (2005, 40646), (4010, 20323)]