81955244

素因数分解:

$2^2\times 7^2\times {\mathrm{257}}^1\times {\mathrm{1627}}^1$

素因数の和:1902

約数の個数: 36

約数和(自身を含む): 167589576

約数和(自身を除く): 85634332

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 257, 514, 1028, 1627, 1799, 3254, 3598, 6508, 7196, 11389, 12593, 22778, 25186, 45556, 50372, 79723, 159446, 318892, 418139, 836278, 1672556, 2926973, 5853946, 11707892, 20488811, 40977622, 81955244]

約数ペア:

[(1, 81955244), (2, 40977622), (4, 20488811), (7, 11707892), (14, 5853946), (28, 2926973), (49, 1672556), (98, 836278), (196, 418139), (257, 318892), (514, 159446), (1028, 79723), (1627, 50372), (1799, 45556), (3254, 25186), (3598, 22778), (6508, 12593), (7196, 11389)]