278330985

素因数分解:

$3^5\times 5^1\times {\mathrm{277}}^1\times {\mathrm{827}}^1$

素因数の和:1124

約数の個数: 48

約数和(自身を含む): 502721856

約数和(自身を除く): 224390871

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 277, 405, 827, 831, 1215, 1385, 2481, 2493, 4135, 4155, 7443, 7479, 12405, 12465, 22329, 22437, 37215, 37395, 66987, 67311, 111645, 112185, 200961, 229079, 334935, 336555, 687237, 1004805, 1145395, 2061711, 3436185, 6185133, 10308555, 18555399, 30925665, 55666197, 92776995, 278330985]

約数ペア:

[(1, 278330985), (3, 92776995), (5, 55666197), (9, 30925665), (15, 18555399), (27, 10308555), (45, 6185133), (81, 3436185), (135, 2061711), (243, 1145395), (277, 1004805), (405, 687237), (827, 336555), (831, 334935), (1215, 229079), (1385, 200961), (2481, 112185), (2493, 111645), (4135, 67311), (4155, 66987), (7443, 37395), (7479, 37215), (12405, 22437), (12465, 22329)]