8421880

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{677}}^1$

素因数の和:999

約数の個数: 32

約数和(自身を含む): 19038240

約数和(自身を除く): 10616360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 677, 1244, 1354, 1555, 2488, 2708, 3110, 3385, 5416, 6220, 6770, 12440, 13540, 27080, 210547, 421094, 842188, 1052735, 1684376, 2105470, 4210940, 8421880]

約数ペア:

[(1, 8421880), (2, 4210940), (4, 2105470), (5, 1684376), (8, 1052735), (10, 842188), (20, 421094), (40, 210547), (311, 27080), (622, 13540), (677, 12440), (1244, 6770), (1354, 6220), (1555, 5416), (2488, 3385), (2708, 3110)]