209311700420

素因数分解:

$2^2\times 5^1\times {\mathrm{10465585021}}^1$

素因数の和:10465585030

約数の個数: 12

約数和(自身を含む): 439554570924

約数和(自身を除く): 230242870504

約数列:

[1, 2, 4, 5, 10, 20, 10465585021, 20931170042, 41862340084, 52327925105, 104655850210, 209311700420]

約数ペア:

[(1, 209311700420), (2, 104655850210), (4, 52327925105), (5, 41862340084), (10, 20931170042), (20, 10465585021)]