256191680

素因数分解:

$2^6\times 5^1\times {\mathrm{800599}}^1$

素因数の和:800616

約数の個数: 28

約数和(自身を含む): 610057200

約数和(自身を除く): 353865520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 800599, 1601198, 3202396, 4002995, 6404792, 8005990, 12809584, 16011980, 25619168, 32023960, 51238336, 64047920, 128095840, 256191680]

約数ペア:

[(1, 256191680), (2, 128095840), (4, 64047920), (5, 51238336), (8, 32023960), (10, 25619168), (16, 16011980), (20, 12809584), (32, 8005990), (40, 6404792), (64, 4002995), (80, 3202396), (160, 1601198), (320, 800599)]