51281080

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{5749}}^1$

素因数の和:5983

約数の個数: 32

約数和(自身を含む): 115920000

約数和(自身を除く): 64638920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 5749, 8920, 11498, 22996, 28745, 45992, 57490, 114980, 229960, 1282027, 2564054, 5128108, 6410135, 10256216, 12820270, 25640540, 51281080]

約数ペア:

[(1, 51281080), (2, 25640540), (4, 12820270), (5, 10256216), (8, 6410135), (10, 5128108), (20, 2564054), (40, 1282027), (223, 229960), (446, 114980), (892, 57490), (1115, 45992), (1784, 28745), (2230, 22996), (4460, 11498), (5749, 8920)]