51402980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{135271}}^1$

素因数の和:135299

約数の個数: 24

約数和(自身を含む): 113628480

約数和(自身を除く): 62225500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 135271, 270542, 541084, 676355, 1352710, 2570149, 2705420, 5140298, 10280596, 12850745, 25701490, 51402980]

約数ペア:

[(1, 51402980), (2, 25701490), (4, 12850745), (5, 10280596), (10, 5140298), (19, 2705420), (20, 2570149), (38, 1352710), (76, 676355), (95, 541084), (190, 270542), (380, 135271)]