18506440

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3643}}^1$

素因数の和:3781

約数の個数: 32

約数和(自身を含む): 41978880

約数和(自身を除く): 23472440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3643, 5080, 7286, 14572, 18215, 29144, 36430, 72860, 145720, 462661, 925322, 1850644, 2313305, 3701288, 4626610, 9253220, 18506440]

約数ペア:

[(1, 18506440), (2, 9253220), (4, 4626610), (5, 3701288), (8, 2313305), (10, 1850644), (20, 925322), (40, 462661), (127, 145720), (254, 72860), (508, 36430), (635, 29144), (1016, 18215), (1270, 14572), (2540, 7286), (3643, 5080)]