19894450

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{3863}}^1$

素因数の和:3978

約数の個数: 24

約数和(自身を含む): 37372608

約数和(自身を除く): 17478158

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 515, 1030, 2575, 3863, 5150, 7726, 19315, 38630, 96575, 193150, 397889, 795778, 1989445, 3978890, 9947225, 19894450]

約数ペア:

[(1, 19894450), (2, 9947225), (5, 3978890), (10, 1989445), (25, 795778), (50, 397889), (103, 193150), (206, 96575), (515, 38630), (1030, 19315), (2575, 7726), (3863, 5150)]