20008065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1019}}^1$

素因数の和:1062

約数の個数: 64

約数和(自身を含む): 42301440

約数和(自身を除く): 22293375

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 231, 255, 357, 385, 561, 595, 935, 1019, 1155, 1309, 1785, 2805, 3057, 3927, 5095, 6545, 7133, 11209, 15285, 17323, 19635, 21399, 33627, 35665, 51969, 56045, 78463, 86615, 106995, 121261, 168135, 190553, 235389, 259845, 363783, 392315, 571659, 606305, 952765, 1176945, 1333871, 1818915, 2858295, 4001613, 6669355, 20008065]

約数ペア:

[(1, 20008065), (3, 6669355), (5, 4001613), (7, 2858295), (11, 1818915), (15, 1333871), (17, 1176945), (21, 952765), (33, 606305), (35, 571659), (51, 392315), (55, 363783), (77, 259845), (85, 235389), (105, 190553), (119, 168135), (165, 121261), (187, 106995), (231, 86615), (255, 78463), (357, 56045), (385, 51969), (561, 35665), (595, 33627), (935, 21399), (1019, 19635), (1155, 17323), (1309, 15285), (1785, 11209), (2805, 7133), (3057, 6545), (3927, 5095)]