18508727990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{213949}}^1$

素因数の和:214208

約数の個数: 32

約数和(自身を含む): 34290194400

約数和(自身を除く): 15781466410

約数列:

[1, 2, 5, 10, 41, 82, 205, 211, 410, 422, 1055, 2110, 8651, 17302, 43255, 86510, 213949, 427898, 1069745, 2139490, 8771909, 17543818, 43859545, 45143239, 87719090, 90286478, 225716195, 451432390, 1850872799, 3701745598, 9254363995, 18508727990]

約数ペア:

[(1, 18508727990), (2, 9254363995), (5, 3701745598), (10, 1850872799), (41, 451432390), (82, 225716195), (205, 90286478), (211, 87719090), (410, 45143239), (422, 43859545), (1055, 17543818), (2110, 8771909), (8651, 2139490), (17302, 1069745), (43255, 427898), (86510, 213949)]