201980540

素因数分解:

$2^2\times 5^1\times {\mathrm{10099027}}^1$

素因数の和:10099036

約数の個数: 12

約数和(自身を含む): 424159176

約数和(自身を除く): 222178636

約数列:

[1, 2, 4, 5, 10, 20, 10099027, 20198054, 40396108, 50495135, 100990270, 201980540]

約数ペア:

[(1, 201980540), (2, 100990270), (4, 50495135), (5, 40396108), (10, 20198054), (20, 10099027)]