20808101890

素因数分解:

$2^1\times 5^1\times {\mathrm{3727}}^1\times {\mathrm{558307}}^1$

素因数の和:562041

約数の個数: 16

約数和(自身を含む): 37464700032

約数和(自身を除く): 16656598142

約数列:

[1, 2, 5, 10, 3727, 7454, 18635, 37270, 558307, 1116614, 2791535, 5583070, 2080810189, 4161620378, 10404050945, 20808101890]

約数ペア:

[(1, 20808101890), (2, 10404050945), (5, 4161620378), (10, 2080810189), (3727, 5583070), (7454, 2791535), (18635, 1116614), (37270, 558307)]