206688400

素因数分解:

$2^4\times 5^2\times {\mathrm{516721}}^1$

素因数の和:516739

約数の個数: 30

約数和(自身を含む): 496569842

約数和(自身を除く): 289881442

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 516721, 1033442, 2066884, 2583605, 4133768, 5167210, 8267536, 10334420, 12918025, 20668840, 25836050, 41337680, 51672100, 103344200, 206688400]

約数ペア:

[(1, 206688400), (2, 103344200), (4, 51672100), (5, 41337680), (8, 25836050), (10, 20668840), (16, 12918025), (20, 10334420), (25, 8267536), (40, 5167210), (50, 4133768), (80, 2583605), (100, 2066884), (200, 1033442), (400, 516721)]