10005080

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{643}}^1$

素因数の和:1043

約数の個数: 32

約数和(自身を含む): 22604400

約数和(自身を除く): 12599320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 643, 778, 1286, 1556, 1945, 2572, 3112, 3215, 3890, 5144, 6430, 7780, 12860, 15560, 25720, 250127, 500254, 1000508, 1250635, 2001016, 2501270, 5002540, 10005080]

約数ペア:

[(1, 10005080), (2, 5002540), (4, 2501270), (5, 2001016), (8, 1250635), (10, 1000508), (20, 500254), (40, 250127), (389, 25720), (643, 15560), (778, 12860), (1286, 7780), (1556, 6430), (1945, 5144), (2572, 3890), (3112, 3215)]