201980440

素因数分解:

$2^3\times 5^1\times {\mathrm{5049511}}^1$

素因数の和:5049522

約数の個数: 16

約数和(自身を含む): 454456080

約数和(自身を除く): 252475640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5049511, 10099022, 20198044, 25247555, 40396088, 50495110, 100990220, 201980440]

約数ペア:

[(1, 201980440), (2, 100990220), (4, 50495110), (5, 40396088), (8, 25247555), (10, 20198044), (20, 10099022), (40, 5049511)]