526780000

素因数分解:

$2^5\times 5^4\times {\mathrm{26339}}^1$

素因数の和:26369

約数の個数: 60

約数和(自身を含む): 1296007020

約数和(自身を除く): 769227020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 4000, 5000, 10000, 20000, 26339, 52678, 105356, 131695, 210712, 263390, 421424, 526780, 658475, 842848, 1053560, 1316950, 2107120, 2633900, 3292375, 4214240, 5267800, 6584750, 10535600, 13169500, 16461875, 21071200, 26339000, 32923750, 52678000, 65847500, 105356000, 131695000, 263390000, 526780000]

約数ペア:

[(1, 526780000), (2, 263390000), (4, 131695000), (5, 105356000), (8, 65847500), (10, 52678000), (16, 32923750), (20, 26339000), (25, 21071200), (32, 16461875), (40, 13169500), (50, 10535600), (80, 6584750), (100, 5267800), (125, 4214240), (160, 3292375), (200, 2633900), (250, 2107120), (400, 1316950), (500, 1053560), (625, 842848), (800, 658475), (1000, 526780), (1250, 421424), (2000, 263390), (2500, 210712), (4000, 131695), (5000, 105356), (10000, 52678), (20000, 26339)]