13560280

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1289}}^1$

素因数の和:1563

約数の個数: 32

約数和(自身を含む): 30650400

約数和(自身を除く): 17090120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1289, 1315, 2104, 2578, 2630, 5156, 5260, 6445, 10312, 10520, 12890, 25780, 51560, 339007, 678014, 1356028, 1695035, 2712056, 3390070, 6780140, 13560280]

約数ペア:

[(1, 13560280), (2, 6780140), (4, 3390070), (5, 2712056), (8, 1695035), (10, 1356028), (20, 678014), (40, 339007), (263, 51560), (526, 25780), (1052, 12890), (1289, 10520), (1315, 10312), (2104, 6445), (2578, 5260), (2630, 5156)]