640563

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:127

約数の個数: 32

約数和(自身を含む): 1105920

約数和(自身を除く): 465357

約数列:

[1, 3, 7, 11, 21, 33, 47, 59, 77, 141, 177, 231, 329, 413, 517, 649, 987, 1239, 1551, 1947, 2773, 3619, 4543, 8319, 10857, 13629, 19411, 30503, 58233, 91509, 213521, 640563]

約数ペア:

[(1, 640563), (3, 213521), (7, 91509), (11, 58233), (21, 30503), (33, 19411), (47, 13629), (59, 10857), (77, 8319), (141, 4543), (177, 3619), (231, 2773), (329, 1947), (413, 1551), (517, 1239), (649, 987)]