18526520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1283}}^1$

素因数の和:1332

約数の個数: 48

約数和(自身を含む): 44028360

約数和(自身を除く): 25501840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1283, 1444, 1805, 2566, 2888, 3610, 5132, 6415, 7220, 10264, 12830, 14440, 24377, 25660, 48754, 51320, 97508, 121885, 195016, 243770, 463163, 487540, 926326, 975080, 1852652, 2315815, 3705304, 4631630, 9263260, 18526520]

約数ペア:

[(1, 18526520), (2, 9263260), (4, 4631630), (5, 3705304), (8, 2315815), (10, 1852652), (19, 975080), (20, 926326), (38, 487540), (40, 463163), (76, 243770), (95, 195016), (152, 121885), (190, 97508), (361, 51320), (380, 48754), (722, 25660), (760, 24377), (1283, 14440), (1444, 12830), (1805, 10264), (2566, 7220), (2888, 6415), (3610, 5132)]