278294548

素因数分解:

$2^2\times 7^1\times {\mathrm{1993}}^1\times {\mathrm{4987}}^1$

素因数の和:6991

約数の個数: 24

約数和(自身を含む): 556980032

約数和(自身を除く): 278685484

約数列:

[1, 2, 4, 7, 14, 28, 1993, 3986, 4987, 7972, 9974, 13951, 19948, 27902, 34909, 55804, 69818, 139636, 9939091, 19878182, 39756364, 69573637, 139147274, 278294548]

約数ペア:

[(1, 278294548), (2, 139147274), (4, 69573637), (7, 39756364), (14, 19878182), (28, 9939091), (1993, 139636), (3986, 69818), (4987, 55804), (7972, 34909), (9974, 27902), (13951, 19948)]