18131605

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 24710400

約数和(自身を除く): 6578795

約数列:

[1, 5, 17, 19, 85, 95, 103, 109, 323, 515, 545, 1615, 1751, 1853, 1957, 2071, 8755, 9265, 9785, 10355, 11227, 33269, 35207, 56135, 166345, 176035, 190859, 213313, 954295, 1066565, 3626321, 18131605]

約数ペア:

[(1, 18131605), (5, 3626321), (17, 1066565), (19, 954295), (85, 213313), (95, 190859), (103, 176035), (109, 166345), (323, 56135), (515, 35207), (545, 33269), (1615, 11227), (1751, 10355), (1853, 9785), (1957, 9265), (2071, 8755)]