990813128

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{257}}^1\times {\mathrm{3467}}^1$

素因数の和:3869

約数の個数: 32

約数和(自身を含む): 1878962400

約数和(自身を除く): 888149272

約数列:

[1, 2, 4, 8, 139, 257, 278, 514, 556, 1028, 1112, 2056, 3467, 6934, 13868, 27736, 35723, 71446, 142892, 285784, 481913, 891019, 963826, 1782038, 1927652, 3564076, 3855304, 7128152, 123851641, 247703282, 495406564, 990813128]

約数ペア:

[(1, 990813128), (2, 495406564), (4, 247703282), (8, 123851641), (139, 7128152), (257, 3855304), (278, 3564076), (514, 1927652), (556, 1782038), (1028, 963826), (1112, 891019), (2056, 481913), (3467, 285784), (6934, 142892), (13868, 71446), (27736, 35723)]