217440400

素因数分解:

$2^4\times 5^2\times {\mathrm{543601}}^1$

素因数の和:543619

約数の個数: 30

約数和(自身を含む): 522401522

約数和(自身を除く): 304961122

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 543601, 1087202, 2174404, 2718005, 4348808, 5436010, 8697616, 10872020, 13590025, 21744040, 27180050, 43488080, 54360100, 108720200, 217440400]

約数ペア:

[(1, 217440400), (2, 108720200), (4, 54360100), (5, 43488080), (8, 27180050), (10, 21744040), (16, 13590025), (20, 10872020), (25, 8697616), (40, 5436010), (50, 4348808), (80, 2718005), (100, 2174404), (200, 1087202), (400, 543601)]