291206385

素因数分解:

$3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 513729216

約数和(自身を除く): 222522831

約数列:

[1, 3, 5, 9, 15, 45, 107, 197, 307, 321, 535, 591, 921, 963, 985, 1535, 1605, 1773, 2763, 2955, 4605, 4815, 8865, 13815, 21079, 32849, 60479, 63237, 98547, 105395, 164245, 181437, 189711, 295641, 302395, 316185, 492735, 544311, 907185, 948555, 1478205, 2721555, 6471253, 19413759, 32356265, 58241277, 97068795, 291206385]

約数ペア:

[(1, 291206385), (3, 97068795), (5, 58241277), (9, 32356265), (15, 19413759), (45, 6471253), (107, 2721555), (197, 1478205), (307, 948555), (321, 907185), (535, 544311), (591, 492735), (921, 316185), (963, 302395), (985, 295641), (1535, 189711), (1605, 181437), (1773, 164245), (2763, 105395), (2955, 98547), (4605, 63237), (4815, 60479), (8865, 32849), (13815, 21079)]