1289778885

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1\times {\mathrm{787}}^1$

素因数の和:1338

約数の個数: 48

約数和(自身を含む): 2271709440

約数和(自身を除く): 981930555

約数列:

[1, 3, 5, 9, 15, 45, 79, 237, 395, 461, 711, 787, 1185, 1383, 2305, 2361, 3555, 3935, 4149, 6915, 7083, 11805, 20745, 35415, 36419, 62173, 109257, 182095, 186519, 310865, 327771, 362807, 546285, 559557, 932595, 1088421, 1638855, 1814035, 2797785, 3265263, 5442105, 16326315, 28661753, 85985259, 143308765, 257955777, 429926295, 1289778885]

約数ペア:

[(1, 1289778885), (3, 429926295), (5, 257955777), (9, 143308765), (15, 85985259), (45, 28661753), (79, 16326315), (237, 5442105), (395, 3265263), (461, 2797785), (711, 1814035), (787, 1638855), (1185, 1088421), (1383, 932595), (2305, 559557), (2361, 546285), (3555, 362807), (3935, 327771), (4149, 310865), (6915, 186519), (7083, 182095), (11805, 109257), (20745, 62173), (35415, 36419)]