2775020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1559}}^1$

素因数の和:1657

約数の個数: 24

約数和(自身を含む): 5896800

約数和(自身を除く): 3121780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1559, 1780, 3118, 6236, 7795, 15590, 31180, 138751, 277502, 555004, 693755, 1387510, 2775020]

約数ペア:

[(1, 2775020), (2, 1387510), (4, 693755), (5, 555004), (10, 277502), (20, 138751), (89, 31180), (178, 15590), (356, 7795), (445, 6236), (890, 3118), (1559, 1780)]