257686394

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{1087}}^1$

素因数の和:1203

約数の個数: 48

約数和(自身を含む): 468840960

約数和(自身を除く): 211154566

約数列:

[1, 2, 7, 14, 41, 49, 59, 82, 98, 118, 287, 413, 574, 826, 1087, 2009, 2174, 2419, 2891, 4018, 4838, 5782, 7609, 15218, 16933, 33866, 44567, 53263, 64133, 89134, 106526, 118531, 128266, 237062, 311969, 448931, 623938, 897862, 2183783, 2629453, 3142517, 4367566, 5258906, 6285034, 18406171, 36812342, 128843197, 257686394]

約数ペア:

[(1, 257686394), (2, 128843197), (7, 36812342), (14, 18406171), (41, 6285034), (49, 5258906), (59, 4367566), (82, 3142517), (98, 2629453), (118, 2183783), (287, 897862), (413, 623938), (574, 448931), (826, 311969), (1087, 237062), (2009, 128266), (2174, 118531), (2419, 106526), (2891, 89134), (4018, 64133), (4838, 53263), (5782, 44567), (7609, 33866), (15218, 16933)]