2830040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 6426000

約数和(自身を除く): 3595960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 509, 556, 695, 1018, 1112, 1390, 2036, 2545, 2780, 4072, 5090, 5560, 10180, 20360, 70751, 141502, 283004, 353755, 566008, 707510, 1415020, 2830040]

約数ペア:

[(1, 2830040), (2, 1415020), (4, 707510), (5, 566008), (8, 353755), (10, 283004), (20, 141502), (40, 70751), (139, 20360), (278, 10180), (509, 5560), (556, 5090), (695, 4072), (1018, 2780), (1112, 2545), (1390, 2036)]