201023860

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{20639}}^1$

素因数の和:21135

約数の個数: 24

約数和(自身を含む): 423037440

約数和(自身を除く): 222013580

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9740, 20639, 41278, 82556, 103195, 206390, 412780, 10051193, 20102386, 40204772, 50255965, 100511930, 201023860]

約数ペア:

[(1, 201023860), (2, 100511930), (4, 50255965), (5, 40204772), (10, 20102386), (20, 10051193), (487, 412780), (974, 206390), (1948, 103195), (2435, 82556), (4870, 41278), (9740, 20639)]