209969410

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{428509}}^1$

素因数の和:428530

約数の個数: 24

約数和(自身を含む): 439651260

約数和(自身を除く): 229681850

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 428509, 857018, 2142545, 2999563, 4285090, 5999126, 14997815, 20996941, 29995630, 41993882, 104984705, 209969410]

約数ペア:

[(1, 209969410), (2, 104984705), (5, 41993882), (7, 29995630), (10, 20996941), (14, 14997815), (35, 5999126), (49, 4285090), (70, 2999563), (98, 2142545), (245, 857018), (490, 428509)]