5128000

素因数分解:

$2^6\times 5^3\times {\mathrm{641}}^1$

素因数の和:668

約数の個数: 56

約数和(自身を含む): 12719304

約数和(自身を除く): 7591304

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, 641, 800, 1000, 1282, 1600, 2000, 2564, 3205, 4000, 5128, 6410, 8000, 10256, 12820, 16025, 20512, 25640, 32050, 41024, 51280, 64100, 80125, 102560, 128200, 160250, 205120, 256400, 320500, 512800, 641000, 1025600, 1282000, 2564000, 5128000]

約数ペア:

[(1, 5128000), (2, 2564000), (4, 1282000), (5, 1025600), (8, 641000), (10, 512800), (16, 320500), (20, 256400), (25, 205120), (32, 160250), (40, 128200), (50, 102560), (64, 80125), (80, 64100), (100, 51280), (125, 41024), (160, 32050), (200, 25640), (250, 20512), (320, 16025), (400, 12820), (500, 10256), (641, 8000), (800, 6410), (1000, 5128), (1282, 4000), (1600, 3205), (2000, 2564)]