20202100

素因数分解:

$2^2\times 5^2\times {\mathrm{202021}}^1$

素因数の和:202035

約数の個数: 18

約数和(自身を含む): 43838774

約数和(自身を除く): 23636674

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 202021, 404042, 808084, 1010105, 2020210, 4040420, 5050525, 10101050, 20202100]

約数ペア:

[(1, 20202100), (2, 10101050), (4, 5050525), (5, 4040420), (10, 2020210), (20, 1010105), (25, 808084), (50, 404042), (100, 202021)]