209930210

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{428429}}^1$

素因数の和:428450

約数の個数: 24

約数和(自身を含む): 439569180

約数和(自身を除く): 229638970

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 428429, 856858, 2142145, 2999003, 4284290, 5998006, 14995015, 20993021, 29990030, 41986042, 104965105, 209930210]

約数ペア:

[(1, 209930210), (2, 104965105), (5, 41986042), (7, 29990030), (10, 20993021), (14, 14995015), (35, 5998006), (49, 4284290), (70, 2999003), (98, 2142145), (245, 856858), (490, 428429)]