81648556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{1855649}}^1$

素因数の和:1855664

約数の個数: 12

約数和(自身を含む): 155874600

約数和(自身を除く): 74226044

約数列:

[1, 2, 4, 11, 22, 44, 1855649, 3711298, 7422596, 20412139, 40824278, 81648556]

約数ペア:

[(1, 81648556), (2, 40824278), (4, 20412139), (11, 7422596), (22, 3711298), (44, 1855649)]