1279000000

素因数分解:

$2^6\times 5^6\times {\mathrm{1279}}^1$

素因数の和:1321

約数の個数: 98

約数和(自身を含む): 3174959360

約数和(自身を除く): 1895959360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1279, 1600, 2000, 2500, 2558, 3125, 4000, 5000, 5116, 6250, 6395, 8000, 10000, 10232, 12500, 12790, 15625, 20000, 20464, 25000, 25580, 31250, 31975, 40000, 40928, 50000, 51160, 62500, 63950, 81856, 100000, 102320, 125000, 127900, 159875, 200000, 204640, 250000, 255800, 319750, 409280, 500000, 511600, 639500, 799375, 1000000, 1023200, 1279000, 1598750, 2046400, 2558000, 3197500, 3996875, 5116000, 6395000, 7993750, 10232000, 12790000, 15987500, 19984375, 25580000, 31975000, 39968750, 51160000, 63950000, 79937500, 127900000, 159875000, 255800000, 319750000, 639500000, 1279000000]

約数ペア:

[(1, 1279000000), (2, 639500000), (4, 319750000), (5, 255800000), (8, 159875000), (10, 127900000), (16, 79937500), (20, 63950000), (25, 51160000), (32, 39968750), (40, 31975000), (50, 25580000), (64, 19984375), (80, 15987500), (100, 12790000), (125, 10232000), (160, 7993750), (200, 6395000), (250, 5116000), (320, 3996875), (400, 3197500), (500, 2558000), (625, 2046400), (800, 1598750), (1000, 1279000), (1250, 1023200), (1279, 1000000), (1600, 799375), (2000, 639500), (2500, 511600), (2558, 500000), (3125, 409280), (4000, 319750), (5000, 255800), (5116, 250000), (6250, 204640), (6395, 200000), (8000, 159875), (10000, 127900), (10232, 125000), (12500, 102320), (12790, 100000), (15625, 81856), (20000, 63950), (20464, 62500), (25000, 51160), (25580, 50000), (31250, 40928), (31975, 40000)]