208381005

素因数分解:

$3^6\times 5^1\times 7^1\times {\mathrm{8167}}^1$

素因数の和:8197

約数の個数: 56

約数和(自身を含む): 428525952

約数和(自身を除く): 220144947

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 729, 945, 1215, 1701, 2835, 3645, 5103, 8167, 8505, 24501, 25515, 40835, 57169, 73503, 122505, 171507, 220509, 285845, 367515, 514521, 661527, 857535, 1102545, 1543563, 1984581, 2572605, 3307635, 4630689, 5953743, 7717815, 9922905, 13892067, 23153445, 29768715, 41676201, 69460335, 208381005]

約数ペア:

[(1, 208381005), (3, 69460335), (5, 41676201), (7, 29768715), (9, 23153445), (15, 13892067), (21, 9922905), (27, 7717815), (35, 5953743), (45, 4630689), (63, 3307635), (81, 2572605), (105, 1984581), (135, 1543563), (189, 1102545), (243, 857535), (315, 661527), (405, 514521), (567, 367515), (729, 285845), (945, 220509), (1215, 171507), (1701, 122505), (2835, 73503), (3645, 57169), (5103, 40835), (8167, 25515), (8505, 24501)]