81748336

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{268909}}^1$

素因数の和:268936

約数の個数: 20

約数和(自身を含む): 166724200

約数和(自身を除く): 84975864

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 268909, 537818, 1075636, 2151272, 4302544, 5109271, 10218542, 20437084, 40874168, 81748336]

約数ペア:

[(1, 81748336), (2, 40874168), (4, 20437084), (8, 10218542), (16, 5109271), (19, 4302544), (38, 2151272), (76, 1075636), (152, 537818), (304, 268909)]