18082520

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1759}}^1$

素因数の和:2027

約数の個数: 32

約数和(自身を含む): 40867200

約数和(自身を除く): 22784680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1759, 2056, 2570, 3518, 5140, 7036, 8795, 10280, 14072, 17590, 35180, 70360, 452063, 904126, 1808252, 2260315, 3616504, 4520630, 9041260, 18082520]

約数ペア:

[(1, 18082520), (2, 9041260), (4, 4520630), (5, 3616504), (8, 2260315), (10, 1808252), (20, 904126), (40, 452063), (257, 70360), (514, 35180), (1028, 17590), (1285, 14072), (1759, 10280), (2056, 8795), (2570, 7036), (3518, 5140)]