81385808

素因数分解:

$2^4\times 7^1\times {\mathrm{726659}}^1$

素因数の和:726674

約数の個数: 20

約数和(自身を含む): 180211680

約数和(自身を除く): 98825872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 726659, 1453318, 2906636, 5086613, 5813272, 10173226, 11626544, 20346452, 40692904, 81385808]

約数ペア:

[(1, 81385808), (2, 40692904), (4, 20346452), (7, 11626544), (8, 10173226), (14, 5813272), (16, 5086613), (28, 2906636), (56, 1453318), (112, 726659)]