128731236

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1087}}^1$

素因数の和:1304

約数の個数: 48

約数和(自身を含む): 307077120

約数和(自身を除く): 178345884

約数列:

[1, 2, 3, 4, 6, 12, 71, 139, 142, 213, 278, 284, 417, 426, 556, 834, 852, 1087, 1668, 2174, 3261, 4348, 6522, 9869, 13044, 19738, 29607, 39476, 59214, 77177, 118428, 151093, 154354, 231531, 302186, 308708, 453279, 463062, 604372, 906558, 926124, 1813116, 10727603, 21455206, 32182809, 42910412, 64365618, 128731236]

約数ペア:

[(1, 128731236), (2, 64365618), (3, 42910412), (4, 32182809), (6, 21455206), (12, 10727603), (71, 1813116), (139, 926124), (142, 906558), (213, 604372), (278, 463062), (284, 453279), (417, 308708), (426, 302186), (556, 231531), (834, 154354), (852, 151093), (1087, 118428), (1668, 77177), (2174, 59214), (3261, 39476), (4348, 29607), (6522, 19738), (9869, 13044)]