20499560

素因数分解:

$2^3\times 5^1\times {\mathrm{677}}^1\times {\mathrm{757}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 46253160

約数和(自身を除く): 25753600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 677, 757, 1354, 1514, 2708, 3028, 3385, 3785, 5416, 6056, 6770, 7570, 13540, 15140, 27080, 30280, 512489, 1024978, 2049956, 2562445, 4099912, 5124890, 10249780, 20499560]

約数ペア:

[(1, 20499560), (2, 10249780), (4, 5124890), (5, 4099912), (8, 2562445), (10, 2049956), (20, 1024978), (40, 512489), (677, 30280), (757, 27080), (1354, 15140), (1514, 13540), (2708, 7570), (3028, 6770), (3385, 6056), (3785, 5416)]