20053820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9199}}^1$

素因数の和:9317

約数の個数: 24

約数和(自身を含む): 42504000

約数和(自身を除く): 22450180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 9199, 18398, 36796, 45995, 91990, 183980, 1002691, 2005382, 4010764, 5013455, 10026910, 20053820]

約数ペア:

[(1, 20053820), (2, 10026910), (4, 5013455), (5, 4010764), (10, 2005382), (20, 1002691), (109, 183980), (218, 91990), (436, 45995), (545, 36796), (1090, 18398), (2180, 9199)]