199902100

素因数分解:

$2^2\times 5^2\times {\mathrm{1999021}}^1$

素因数の和:1999035

約数の個数: 18

約数和(自身を含む): 433787774

約数和(自身を除く): 233885674

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1999021, 3998042, 7996084, 9995105, 19990210, 39980420, 49975525, 99951050, 199902100]

約数ペア:

[(1, 199902100), (2, 99951050), (4, 49975525), (5, 39980420), (10, 19990210), (20, 9995105), (25, 7996084), (50, 3998042), (100, 1999021)]