208026520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{400051}}^1$

素因数の和:400075

約数の個数: 32

約数和(自身を含む): 504065520

約数和(自身を除く): 296039000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 400051, 800102, 1600204, 2000255, 3200408, 4000510, 5200663, 8001020, 10401326, 16002040, 20802652, 26003315, 41605304, 52006630, 104013260, 208026520]

約数ペア:

[(1, 208026520), (2, 104013260), (4, 52006630), (5, 41605304), (8, 26003315), (10, 20802652), (13, 16002040), (20, 10401326), (26, 8001020), (40, 5200663), (52, 4000510), (65, 3200408), (104, 2000255), (130, 1600204), (260, 800102), (520, 400051)]