279888532

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12799}}^1$

素因数の和:12892

約数の個数: 48

約数和(自身を含む): 619315200

約数和(自身を除く): 339426668

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 142, 154, 284, 308, 497, 781, 994, 1562, 1988, 3124, 5467, 10934, 12799, 21868, 25598, 51196, 89593, 140789, 179186, 281578, 358372, 563156, 908729, 985523, 1817458, 1971046, 3634916, 3942092, 6361103, 9996019, 12722206, 19992038, 25444412, 39984076, 69972133, 139944266, 279888532]

約数ペア:

[(1, 279888532), (2, 139944266), (4, 69972133), (7, 39984076), (11, 25444412), (14, 19992038), (22, 12722206), (28, 9996019), (44, 6361103), (71, 3942092), (77, 3634916), (142, 1971046), (154, 1817458), (284, 985523), (308, 908729), (497, 563156), (781, 358372), (994, 281578), (1562, 179186), (1988, 140789), (3124, 89593), (5467, 51196), (10934, 25598), (12799, 21868)]