25663720

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2063}}^1$

素因数の和:2385

約数の個数: 32

約数和(自身を含む): 57957120

約数和(自身を除く): 32293400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2063, 2488, 3110, 4126, 6220, 8252, 10315, 12440, 16504, 20630, 41260, 82520, 641593, 1283186, 2566372, 3207965, 5132744, 6415930, 12831860, 25663720]

約数ペア:

[(1, 25663720), (2, 12831860), (4, 6415930), (5, 5132744), (8, 3207965), (10, 2566372), (20, 1283186), (40, 641593), (311, 82520), (622, 41260), (1244, 20630), (1555, 16504), (2063, 12440), (2488, 10315), (3110, 8252), (4126, 6220)]