12761600

素因数分解:

$2^9\times 5^2\times {\mathrm{997}}^1$

素因数の和:1025

約数の個数: 60

約数和(自身を含む): 31649574

約数和(自身を除く): 18887974

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 997, 1280, 1600, 1994, 2560, 3200, 3988, 4985, 6400, 7976, 9970, 12800, 15952, 19940, 24925, 31904, 39880, 49850, 63808, 79760, 99700, 127616, 159520, 199400, 255232, 319040, 398800, 510464, 638080, 797600, 1276160, 1595200, 2552320, 3190400, 6380800, 12761600]

約数ペア:

[(1, 12761600), (2, 6380800), (4, 3190400), (5, 2552320), (8, 1595200), (10, 1276160), (16, 797600), (20, 638080), (25, 510464), (32, 398800), (40, 319040), (50, 255232), (64, 199400), (80, 159520), (100, 127616), (128, 99700), (160, 79760), (200, 63808), (256, 49850), (320, 39880), (400, 31904), (512, 24925), (640, 19940), (800, 15952), (997, 12800), (1280, 9970), (1600, 7976), (1994, 6400), (2560, 4985), (3200, 3988)]