6400461440

素因数分解:

$2^7\times 5^1\times {\mathrm{10000721}}^1$

素因数の和:10000740

約数の個数: 32

約数和(自身を含む): 15301104660

約数和(自身を除く): 8900643220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 10000721, 20001442, 40002884, 50003605, 80005768, 100007210, 160011536, 200014420, 320023072, 400028840, 640046144, 800057680, 1280092288, 1600115360, 3200230720, 6400461440]

約数ペア:

[(1, 6400461440), (2, 3200230720), (4, 1600115360), (5, 1280092288), (8, 800057680), (10, 640046144), (16, 400028840), (20, 320023072), (32, 200014420), (40, 160011536), (64, 100007210), (80, 80005768), (128, 50003605), (160, 40002884), (320, 20001442), (640, 10000721)]