5040400

素因数分解:

$2^4\times 5^2\times {\mathrm{12601}}^1$

素因数の和:12619

約数の個数: 30

約数和(自身を含む): 12110522

約数和(自身を除く): 7070122

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 12601, 25202, 50404, 63005, 100808, 126010, 201616, 252020, 315025, 504040, 630050, 1008080, 1260100, 2520200, 5040400]

約数ペア:

[(1, 5040400), (2, 2520200), (4, 1260100), (5, 1008080), (8, 630050), (10, 504040), (16, 315025), (20, 252020), (25, 201616), (40, 126010), (50, 100808), (80, 63005), (100, 50404), (200, 25202), (400, 12601)]