18370360

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1787}}^1$

素因数の和:2055

約数の個数: 32

約数和(自身を含む): 41517360

約数和(自身を除く): 23147000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1787, 2056, 2570, 3574, 5140, 7148, 8935, 10280, 14296, 17870, 35740, 71480, 459259, 918518, 1837036, 2296295, 3674072, 4592590, 9185180, 18370360]

約数ペア:

[(1, 18370360), (2, 9185180), (4, 4592590), (5, 3674072), (8, 2296295), (10, 1837036), (20, 918518), (40, 459259), (257, 71480), (514, 35740), (1028, 17870), (1285, 14296), (1787, 10280), (2056, 8935), (2570, 7148), (3574, 5140)]