19690100

素因数分解:

$2^2\times 5^2\times {\mathrm{196901}}^1$

素因数の和:196915

約数の個数: 18

約数和(自身を含む): 42727734

約数和(自身を除く): 23037634

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 196901, 393802, 787604, 984505, 1969010, 3938020, 4922525, 9845050, 19690100]

約数ペア:

[(1, 19690100), (2, 9845050), (4, 4922525), (5, 3938020), (10, 1969010), (20, 984505), (25, 787604), (50, 393802), (100, 196901)]