81271204

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{9643}}^1$

素因数の和:9704

約数の個数: 36

約数和(自身を含む): 169310064

約数和(自身を除く): 88038860

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 4214, 8428, 9643, 19286, 38572, 67501, 135002, 270004, 414649, 472507, 829298, 945014, 1658596, 1890028, 2902543, 5805086, 11610172, 20317801, 40635602, 81271204]

約数ペア:

[(1, 81271204), (2, 40635602), (4, 20317801), (7, 11610172), (14, 5805086), (28, 2902543), (43, 1890028), (49, 1658596), (86, 945014), (98, 829298), (172, 472507), (196, 414649), (301, 270004), (602, 135002), (1204, 67501), (2107, 38572), (4214, 19286), (8428, 9643)]