210340420

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{102107}}^1$

素因数の和:102219

約数の個数: 24

約数和(自身を含む): 446007744

約数和(自身を除く): 235667324

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 102107, 204214, 408428, 510535, 1021070, 2042140, 10517021, 21034042, 42068084, 52585105, 105170210, 210340420]

約数ペア:

[(1, 210340420), (2, 105170210), (4, 52585105), (5, 42068084), (10, 21034042), (20, 10517021), (103, 2042140), (206, 1021070), (412, 510535), (515, 408428), (1030, 204214), (2060, 102107)]